Set changelog to 5.14

.dockerignore

@@ -0,0 +1,2 @@
+test
+build

.travis.yml

@@ -285,6 +285,54 @@ matrix:
       after_success:
         - ./scripts/travis/publish.sh
 
+    - os: linux
+      sudo: false
+      compiler: "node-8-mason-linux-release"
+      addons:
+        apt:
+          sources: ['ubuntu-toolchain-r-test']
+          packages: ['libstdc++-4.9-dev']
+      env: CLANG_VERSION='4.0.0' BUILD_TYPE='Release' ENABLE_MASON=ON ENABLE_LTO=ON JOBS=3 NODE="8"
+      install:
+        - pushd ${OSRM_BUILD_DIR}
+        - |
+          cmake .. -DCMAKE_BUILD_TYPE=${BUILD_TYPE} \
+              -DENABLE_MASON=${ENABLE_MASON:-OFF} \
+              -DENABLE_NODE_BINDINGS=${ENABLE_NODE_BINDINGS:-OFF} \
+              -DENABLE_CCACHE=ON \
+              -DCMAKE_INSTALL_PREFIX=${OSRM_INSTALL_DIR} \
+              -DENABLE_GLIBC_WORKAROUND=ON
+        - make --jobs=${JOBS}
+        - popd
+      script:
+        - npm run nodejs-tests
+      after_success:
+        - ./scripts/travis/publish.sh
+
+    - os: linux
+      sudo: false
+      compiler: "node-6-mason-linux-release"
+      addons:
+        apt:
+          sources: ['ubuntu-toolchain-r-test']
+          packages: ['libstdc++-4.9-dev']
+      env: CLANG_VERSION='4.0.0' BUILD_TYPE='Debug' ENABLE_MASON=ON ENABLE_LTO=ON JOBS=3 NODE="8"
+      install:
+        - pushd ${OSRM_BUILD_DIR}
+        - |
+          cmake .. -DCMAKE_BUILD_TYPE=${BUILD_TYPE} \
+              -DENABLE_MASON=${ENABLE_MASON:-OFF} \
+              -DENABLE_NODE_BINDINGS=${ENABLE_NODE_BINDINGS:-OFF} \
+              -DENABLE_CCACHE=ON \
+              -DCMAKE_INSTALL_PREFIX=${OSRM_INSTALL_DIR} \
+              -DENABLE_GLIBC_WORKAROUND=ON
+        - make --jobs=${JOBS}
+        - popd
+      script:
+        - npm run nodejs-tests
+      after_success:
+        - ./scripts/travis/publish.sh
+
 before_install:
   - source $NVM_DIR/nvm.sh
   - nvm install $NODE

CHANGELOG.md

@@ -1,15 +1,50 @@
-# UNRELEASED
+# 5.14.0
+  - Changes from 5.13
+    - API:
+      - ADDED: new RouteStep property `driving_side` that has either "left" or "right" for that step
+    - Misc:
+      - ADDED: Bundles a rough (please improve!) driving-side GeoJSON file for use with `osrm-extract --location-dependent-data data/driving_side.geojson`
+      - CHANGED: Conditional turn parsing is disabled by default now
+      - ADDED: Adds a tool to analyze turn instruction generation in a dataset.  Useful for tracking turn-by-turn heuristic changes over time.
+      - CHANGED: Internal refactoring of guidance code as a first step towards a re-runnable guidance pipeline
+      - ADDED: Now publishing Node 8.x LTS binary modules
+    - Profile:
+      - CHANGED: Remove dependency on turn types and turn modifier in the process_turn function in the `car.lua` profile. Guidance instruction types are not used to influence turn penalty anymore so this will break backward compatibility between profile version 3 and 4.
+    - Guidance:
+      - ADDED: New internal flag on "segregated intersections" - in the future, will should allow collapsing of instructions across complex intersection geometry where humans only perceive a single maneuver
+      - CHANGED: Decrease roundabout turn radius threshold from 25m to 15m - adds some "exit the roundabout" instructions for moderately sized roundabouts that were being missed previously
+    - Docker:
+      - CHANGED: switch to alpine 3.6, and use a multistage build to reduce image size
+    - Build:
+      - FIX: use LUA_LIBRARY_DIRS to propertly detect Lua on all platforms
+    - Docs:
+      - FIX: clarify description of roundabout exit instructions
+    - Bugfixes:
+      - FIXED: Fix bug where merge instructions got the wrong direction modifier ([PR #4670](https://github.com/Project-OSRM/osrm-backend/pull/4670))
+      - FIXED: Properly use the `profile.properties.left_hand_driving` property, there was a typo that meant it had no effect
+      - FIXED: undefined behaviour when alternative candidate via node is same as source node ([#4691](https://github.com/Project-OSRM/osrm-backend/issues/4691))
+      - FIXED: ensure libosrm.pc is pushed to the correct location for pkgconfig to find it on all platforms
+      - FIXED: don't consider empty names + empty refs as a valid name for u-turns
+
+# 5.13.0
   - Changes from 5.12:
     - Profile:
-      - Append cardinal directions from route relations to ref fields to improve instructions
+      - Append cardinal directions from route relations to ref fields to improve instructions; off by default see `profile.cardinal_directions`
       - Support of `distance` weight in foot and bicycle profiles
       - Support of relations processing
       - Added `way:get_location_tag(key)` method to get location-dependent tags https://github.com/Project-OSRM/osrm-backend/wiki/Using-location-dependent-data-in-profiles
+      - Added `forward_ref` and `backward_ref` support
       - Left-side driving mode is specified by a local Boolean flag `is_left_hand_driving` in `ExtractionWay` and `ExtractionTurn`
       - Support literal values for maxspeeds in NO, PL and ZA
     - Infrastructure:
       - Lua 5.1 support is removed due to lack of support in sol2 https://github.com/ThePhD/sol2/issues/302
       - Fixed pkg-config version of OSRM
+      - Removed `.osrm.core` file since CoreCH is deprecated now.
+    - Tools:
+      - Because of boost/program_options#32 with boost 1.65+ we needed to change the behavior of the following flags to not accept `={true|false}` anymore:
+        - `--use-locations-cache=false` becomes `--disable-location-cache`
+        - `--parse-conditional-restrictions=true` becomes `--parse-conditional-restrictions`
+        - The deprecated options `--use-level-cache` and `--generate-edge-lookup`
     - Bugfixes:
       - Fixed #4348: Some cases of sliproads pre-processing were broken
       - Fixed #4331: Correctly compute left/right modifiers of forks in case the fork is curved.

CMakeLists.txt

@@ -61,7 +61,7 @@ if (POLICY CMP0048)
 endif()
 project(OSRM C CXX)
 set(OSRM_VERSION_MAJOR 5)
-set(OSRM_VERSION_MINOR 13)
+set(OSRM_VERSION_MINOR 14)
 set(OSRM_VERSION_PATCH 0)
 set(OSRM_VERSION "${OSRM_VERSION_MAJOR}.${OSRM_VERSION_MINOR}.${OSRM_VERSION_PATCH}")
 
@@ -796,7 +796,7 @@ JOIN("-I${DEPENDENCIES_INCLUDE_DIRS}" " -I" PKGCONFIG_OSRM_INCLUDE_FLAGS)
 JOIN("${ENGINE_LIBRARIES}" " " PKGCONFIG_OSRM_DEPENDENT_LIBRARIES)
 
 configure_file(${CMAKE_CURRENT_SOURCE_DIR}/cmake/pkgconfig.in libosrm.pc @ONLY)
-install(FILES ${PROJECT_BINARY_DIR}/libosrm.pc DESTINATION ${CMAKE_INSTALL_LIBDIR}/pkgconfig)
+install(FILES ${PROJECT_BINARY_DIR}/libosrm.pc DESTINATION ${PKGCONFIG_LIBRARY_DIR}/pkgconfig)
 
 # uninstall target
 configure_file(

CODE-OF-CONDUCT.md

@@ -0,0 +1,3 @@
+# Code of conduct
+
+Everyone is invited to participate in Project OSRM’s open source projects and public discussions: we want to create a welcoming and friendly environment. Harassment of participants or other unethical and unprofessional behavior will not be tolerated in our spaces. The [Contributor Covenant](http://contributor-covenant.org) applies to all projects under the Project-OSRM organization and we ask that you please read [the full text](http://contributor-covenant.org/version/1/2/0/).

CONTRIBUTING.md

@@ -1,8 +1,12 @@
+# Everyone
+
+Please take some time to review our [code of conduct](CODE_OF_CONDUCT.md) to help guide your interactions with others on this project.
+
 # User
 
 Before you open a new issue, please search for older ones that cover the same issue.
 In general "me too" comments/issues are frowned upon.
-You can add a :+1: emoji to the issue if you want to express interest in this.
+You can add a :+1: emoji reaction to the issue if you want to express interest in this.
 
 # Developer
 

README.md

@@ -19,7 +19,6 @@ To quickly try OSRM use our [demo server](http://map.project-osrm.org) which com
 For a quick introduction about how the road network is represented in OpenStreetMap and how to map specific road network features have a look at [this guide about mapping for navigation](https://www.mapbox.com/mapping/mapping-for-navigation/).
 
 Related [Project-OSRM](https://github.com/Project-OSRM) repositories:
-- [node-osrm](https://www.npmjs.com/package/osrm) - Production-ready NodeJs bindings for the routing engine
 - [osrm-frontend](https://github.com/Project-OSRM/osrm-frontend) - User-facing frontend with map. The demo server runs this on top of the backend
 - [osrm-text-instructions](https://github.com/Project-OSRM/osrm-text-instructions) - Text instructions from OSRM route response
 - [osrm-backend-docker](https://hub.docker.com/r/osrm/osrm-backend/) - Ready to use Docker images

cmake/FindLua.cmake

@@ -84,11 +84,15 @@ function(_lua_set_version_vars)
              lua.${CMAKE_MATCH_1}.${CMAKE_MATCH_2}
         )
         pkg_check_modules(LUA QUIET "lua${ver}")
+        list(APPEND _lua_include_subdirs ${LUA_INCLUDE_DIRS})
+        list(APPEND _lua_library_names ${LUA_LIBRARIES})
+        list(APPEND _lua_library_dirs ${LUA_LIBRARY_DIRS})
     endforeach ()
 
     set(_lua_include_subdirs "${_lua_include_subdirs}" PARENT_SCOPE)
     set(_lua_library_names "${_lua_library_names}" PARENT_SCOPE)
     set(_lua_append_versions "${_lua_append_versions}" PARENT_SCOPE)
+    set(_lua_library_dirs "${_lua_library_dirs}" PARENT_SCOPE)
 endfunction(_lua_set_version_vars)
 
 function(_lua_check_header_version _hdr_file)
@@ -161,6 +165,7 @@ find_library(LUA_LIBRARY
     ENV LUA_DIR
   PATH_SUFFIXES lib
   PATHS
+  ${_lua_library_dirs}
   ~/Library/Frameworks
   /Library/Frameworks
   /sw

cucumber.js

@@ -1,6 +1,6 @@
 module.exports = {
-    default: '--strict --tags ~@stress --tags ~@todo --require features/support --require features/step_definitions',
-    verify: '--strict --tags ~@stress --tags ~@todo -f progress --require features/support --require features/step_definitions',
+    default: '--strict --tags ~@stress --tags ~@todo --tags ~@mld-only --require features/support --require features/step_definitions',
+    verify: '--strict --tags ~@stress --tags ~@todo --tags ~@mld-only -f progress --require features/support --require features/step_definitions',
     todo: '--strict --tags @todo --require features/support --require features/step_definitions',
     all: '--strict --require features/support --require features/step_definitions',
     mld: '--strict --tags ~@stress --tags ~@todo --require features/support --require features/step_definitions -f progress'

docker/Dockerfile

@@ -1,34 +1,20 @@
-FROM alpine:3.5
+FROM alpine:3.6 as buildstage
 
-RUN mkdir /opt
-WORKDIR /opt
+ARG DOCKER_TAG
+RUN mkdir -p /src  && mkdir -p /opt
+COPY . /src
+WORKDIR /src
 
 RUN NPROC=$(grep -c ^processor /proc/cpuinfo 2>/dev/null || 1) && \
     echo "@testing http://dl-cdn.alpinelinux.org/alpine/edge/testing" >> /etc/apk/repositories && \
     apk update && \
     apk upgrade && \
     apk add git cmake wget make libc-dev gcc g++ bzip2-dev boost-dev zlib-dev expat-dev lua5.2-dev libtbb@testing libtbb-dev@testing && \
-    \
-    echo "Building libstxxl" && \
-    cd /opt && \
-    git clone --depth 1 --branch 1.4.1 https://github.com/stxxl/stxxl.git && \
-    cd stxxl && \
-    mkdir build && \
-    cd build && \
-    cmake -DCMAKE_BUILD_TYPE=Release .. && \
-    make -j${NPROC} && \
-    make install
-
-ARG DOCKER_TAG
-RUN mkdir /src
-COPY . /src
-WORKDIR /src
-
-RUN NPROC=$(grep -c ^processor /proc/cpuinfo 2>/dev/null || 1) && \
+    NPROC=$(grep -c ^processor /proc/cpuinfo 2>/dev/null || 1) && \
     echo "Building OSRM ${DOCKER_TAG}" && \
     git show --format="%H" | head -n1 > /opt/OSRM_GITSHA && \
     echo "Building OSRM gitsha $(cat /opt/OSRM_GITSHA)" && \
-    mkdir build && \
+    mkdir -p build && \
     cd build && \
     BUILD_TYPE="Release" && \
     ENABLE_ASSERTIONS="Off" && \
@@ -41,13 +27,19 @@ RUN NPROC=$(grep -c ^processor /proc/cpuinfo 2>/dev/null || 1) && \
     cd ../profiles && \
     cp -r * /opt && \
     \
-    echo "Cleaning up" && \
     strip /usr/local/bin/* && \
-    rm /usr/local/lib/libstxxl* && \
-    cd /opt && \
-    apk del boost-dev && \
-    apk del g++ cmake libc-dev expat-dev zlib-dev bzip2-dev lua5.2-dev git make gcc && \
-    apk add boost-filesystem boost-program_options boost-regex boost-iostreams boost-thread libgomp lua5.2 expat && \
-    rm -rf /src /opt/stxxl /usr/local/bin/stxxl_tool /usr/local/lib/libosrm*
+    rm -rf /src /usr/local/lib/libosrm*
+
+
+# Multistage build to reduce image size - https://docs.docker.com/engine/userguide/eng-image/multistage-build/#use-multi-stage-builds
+# Only the content below ends up in the image, this helps remove /src from the image (which is large)
+FROM alpine:3.6 as runstage
+RUN mkdir -p /src  && mkdir -p /opt
+RUN echo "@testing http://dl-cdn.alpinelinux.org/alpine/edge/testing" >> /etc/apk/repositories && \
+    apk update && \
+    apk add boost-filesystem boost-program_options boost-regex boost-iostreams boost-thread libgomp lua5.2 expat libtbb@testing
+COPY --from=buildstage /usr/local /usr/local
+COPY --from=buildstage /opt /opt
+WORKDIR /opt
 
 EXPOSE 5000

docs/http.md

@@ -594,6 +594,7 @@ step.
 - `intersections`: A list of `Intersection` objects that are passed along the segment, the very first belonging to the StepManeuver
 - `rotary_name`: The name for the rotary. Optionally included, if the step is a rotary and a rotary name is available.
 - `rotary_pronunciation`: The pronunciation hint of the rotary name. Optionally included, if the step is a rotary and a rotary pronunciation is available.
+- `driving_side`: The legal driving side at the location for this step.  Either `left` or `right`.
 
 #### Example
 
@@ -664,7 +665,7 @@ step.
 | `end of road`    | road ends in a T intersection turn in direction of `modifier`|
 | `use lane`       | **Deprecated** replaced by lanes on all intersection entries |
 | `continue`       | Turn in direction of `modifier` to stay on the same road     |
-| `roundabout`     | traverse roundabout, has additional property `exit` with NR if the roundabout is left. The modifier specifies the direction of entering the roundabout. |
+| `roundabout`     | traverse roundabout, if the route leaves the roundabout there will be an additional property `exit` for exit counting. The modifier specifies the direction of entering the roundabout. |
 | `rotary`         | a traffic circle. While very similar to a larger version of a roundabout, it does not necessarily follow roundabout rules for right of way. It can offer `rotary_name` and/or `rotary_pronunciation` parameters (located in the RouteStep object) in addition to the `exit` parameter (located on the StepManeuver object).  |
 | `roundabout turn`| Describes a turn at a small roundabout that should be treated as normal turn. The `modifier` indicates the turn direciton. Example instruction: `At the roundabout turn left`. |
 | `notification`   | not an actual turn but a change in the driving conditions. For example the travel mode or classes. If the road takes a turn itself, the `modifier` describes the direction |

docs/profiles.md

@@ -171,7 +171,9 @@ is_startpoint                           | Boolean  | Can a journey start on this
 roundabout                              | Boolean  | Is this part of a roundabout?
 circular                                | Boolean  | Is this part of a non-roundabout circular junction?
 name                                    | String   | Name of the way
-ref                                     | String   | Road number
+ref                                     | String   | Road number (equal to set `forward_ref` and `backward_ref` with one value)
+forward_ref                             | String   | Road number in forward way direction
+backward_ref                            | String   | Road number in backward way direction
 destinations                            | String   | The road's destinations
 exits                                   | String   | The ramp's exit numbers or names
 pronunciation                           | String   | Name pronunciation

features/bicycle/barrier.feature

@@ -10,6 +10,7 @@ Feature: Barriers
             |                | x     |
             | bollard        | x     |
             | gate           | x     |
+            | lift_gate      | x     |
             | cycle_barrier  | x     |
             | cattle_grid    | x     |
             | border_control | x     |

features/car/access.feature

@@ -157,15 +157,16 @@ Feature: Car - Restricted access
 
     Scenario: Car - Access combinations
         Then routability should be
-            | highway     | access       | vehicle    | motor_vehicle | motorcar    | forw | backw | # |
-            | runway      | private      |            |               | permissive  | x    | x     |   |
-            | primary     | forestry     |            | yes           |             | x    | x     |   |
-            | cycleway    |              |            | designated    |             | x    | x     |   |
-            | residential |              | yes        | no            |             |      |       |   |
-            | motorway    | yes          | permissive |               | private     | x    |       | implied oneway  |
-            | trunk       | agricultural | designated | permissive    | no          |      |       |   |
-            | pedestrian  |              |            |               |             |      |       |   |
-            | pedestrian  |              |            |               | destination |      |       | temporary disabled #3773 |
+            | highway      | access       | vehicle    | motor_vehicle | motorcar    | forw | backw | # |
+            | runway       | private      |            |               | permissive  | x    | x     |   |
+            | primary      | forestry     |            | yes           |             | x    | x     |   |
+            | cycleway     |              |            | designated    |             | x    | x     |   |
+            | unclassified |              |            | destination   | destination | x    | x     |   |
+            | residential  |              | yes        | no            |             |      |       |   |
+            | motorway     | yes          | permissive |               | private     | x    |       | implied oneway  |
+            | trunk        | agricultural | designated | permissive    | no          |      |       |   |
+            | pedestrian   |              |            |               |             |      |       |   |
+            | pedestrian   |              |            |               | destination |      |       | temporary disabled #3773 |
 
     Scenario: Car - Ignore access tags for other modes
         Then routability should be

features/car/bridge.feature

@@ -20,9 +20,9 @@ Feature: Car - Handle driving
             | efg   | primary |         |         |
 
         When I route I should get
-            | from | to | route           | modes                           |
-            | a    | g  | abc,cde,efg,efg | driving,driving,driving,driving |
-            | e    | a  | cde,abc,abc     | driving,driving,driving         |
+            | from | to | route           | modes                           | turns                                      |
+            | a    | g  | abc,cde,efg,efg | driving,driving,driving,driving | depart,new name right,new name left,arrive |
+            | e    | a  | cde,abc,abc     | driving,driving,driving         | depart,new name left,arrive                |
 
     Scenario: Car - Control test without durations, osrm uses movable bridge speed to calculate duration
         Given the node map
@@ -39,9 +39,9 @@ Feature: Car - Handle driving
             | efg   | primary |         |
 
         When I route I should get
-            | from | to | route           | modes                           | speed   | time     |
-            | a    | g  | abc,cde,efg,efg | driving,driving,driving,driving | 13 km/h | 340s +-1 |
-            | e    | c  | cde,cde         | driving,driving                 | 5 km/h  | 295s +-1 |
+            | from | to | route           | modes                           | speed   | time     | turns                                      |
+            | a    | g  | abc,cde,efg,efg | driving,driving,driving,driving | 13 km/h | 332s +-1 | depart,new name right,new name left,arrive |
+            | e    | c  | cde,cde         | driving,driving                 | 5 km/h  | 288s +-1 | depart,arrive                              |
 
     Scenario: Car - Properly handle durations
         Given the node map
@@ -58,7 +58,7 @@ Feature: Car - Handle driving
             | efg   | primary |         |          |
 
         When I route I should get
-            | from | to | route           | modes                           | speed  |
-            | a    | g  | abc,cde,efg,efg | driving,driving,driving,driving | 7 km/h |
-            | c    | e  | cde,cde         | driving,driving                 | 2 km/h |
-            | e    | c  | cde,cde         | driving,driving                 | 2 km/h |
+            | from | to | route           | modes                           | speed  | turns                                      |
+            | a    | g  | abc,cde,efg,efg | driving,driving,driving,driving | 7 km/h | depart,new name right,new name left,arrive |
+            | c    | e  | cde,cde         | driving,driving                 | 2 km/h | depart,arrive                              |
+            | e    | c  | cde,cde         | driving,driving                 | 2 km/h | depart,arrive                              |

features/car/conditional_restrictions.feature

@@ -677,7 +677,7 @@ Feature: Car - Turn restrictions
     # https://www.openstreetmap.org/#map=18/38.91099/-77.00888
     @no_turning @conditionals
     Scenario: Car - DC North capitol situation, two on one off
-        Given the extract extra arguments "--parse-conditional-restrictions=1"
+        Given the extract extra arguments "--parse-conditional-restrictions"
         # 9pm Wed 02 May, 2017 UTC, 5pm EDT
         Given the contract extra arguments "--time-zone-file=test/data/tz/{timezone_names}/dc.geojson --parse-conditionals-from-now=1493845200"
         Given the customize extra arguments "--time-zone-file=test/data/tz/{timezone_names}/dc.geojson --parse-conditionals-from-now=1493845200"
@@ -724,7 +724,7 @@ Feature: Car - Turn restrictions
 
     @no_turning @conditionals
     Scenario: Car - DC North capitol situation, one on two off
-        Given the extract extra arguments "--parse-conditional-restrictions=1"
+        Given the extract extra arguments "--parse-conditional-restrictions"
         # 10:30am utc, wed, 6:30am est
         Given the contract extra arguments "--time-zone-file=test/data/tz/{timezone_names}/dc.geojson --parse-conditionals-from-now=1493807400"
         Given the customize extra arguments "--time-zone-file=test/data/tz/{timezone_names}/dc.geojson --parse-conditionals-from-now=1493807400"
@@ -848,7 +848,7 @@ Feature: Car - Turn restrictions
 
     @only_turning @conditionals
     Scenario: Car - Somewhere in London, the UK, GMT timezone
-        Given the extract extra arguments "--parse-conditional-restrictions=1"
+        Given the extract extra arguments "--parse-conditional-restrictions"
         # 9am UTC, 10am BST
         Given the contract extra arguments "--time-zone-file=test/data/tz/{timezone_names}/london.geojson --parse-conditionals-from-now=1493802000"
         Given the customize extra arguments "--time-zone-file=test/data/tz/{timezone_names}/london.geojson --parse-conditionals-from-now=1493802000"

features/car/route_relations.feature

@@ -4,6 +4,11 @@ Feature: Car - route relations
         Given the profile "car"
 
     Scenario: Assignment using relation membership roles
+        Given the profile file "car" initialized with
+        """
+        profile.cardinal_directions = true
+        """
+
         Given the node map
             """
               a----------------b
@@ -26,7 +31,63 @@ Feature: Car - route relations
             | b,a       | westbound,westbound  | I 80 $west,I 80 $west                            |
             | c,d       | eastbound,eastbound  | I 80 $east; CO 93 $east,I 80 $east; CO 93 $east  |
 
+    Scenario: No cardinal directions by default
+        Given the profile file "car" initialized with
+        """
+        profile.cardinal_directions = false
+        """
+        Given the node map
+            """
+              a----------------b
+              c----------------d
+            """
+
+        And the ways
+            | nodes | name        | highway  | ref         |
+            | ba    | westbound   | motorway | I 80        |
+            | cd    | eastbound   | motorway | I 80;CO 93  |
+
+        And the relations
+            | type        | way:east | way:west | route | ref | network |
+            | route       | cd       | ba       | road  | 80  | US:I    |
+            | route       | cd       | ba       | road  | 93  | US:CO   |
+
+
+        When I route I should get
+            | waypoints | route                | ref                     |
+            | b,a       | westbound,westbound  | I 80,I 80               |
+            | c,d       | eastbound,eastbound  | I 80; CO 93,I 80; CO 93 |
+
+    Scenario: No cardinal directions by default
+        Given the node map
+            """
+              a----------------b
+              c----------------d
+            """
+
+        And the ways
+            | nodes | name        | highway  | ref         |
+            | ba    | westbound   | motorway | I 80        |
+            | cd    | eastbound   | motorway | I 80;CO 93  |
+
+        And the relations
+            | type        | way:east | way:west | route | ref | network |
+            | route       | cd       | ba       | road  | 80  | US:I    |
+            | route       | cd       | ba       | road  | 93  | US:CO   |
+
+
+        When I route I should get
+            | waypoints | route                | ref                     |
+            | b,a       | westbound,westbound  | I 80,I 80               |
+            | c,d       | eastbound,eastbound  | I 80; CO 93,I 80; CO 93 |
+
+
     Scenario: Assignment using relation direction property (no role on members)
+        Given the profile file "car" initialized with
+        """
+        profile.cardinal_directions = true
+        """
+
         Given the node map
             """
               a----------------b
@@ -51,6 +112,11 @@ Feature: Car - route relations
 
 
     Scenario: Forward assignment on one-way roads using relation direction property
+        Given the profile file "car" initialized with
+        """
+        profile.cardinal_directions = true
+        """
+
         Given the node map
             """
               a----------------b
@@ -74,31 +140,41 @@ Feature: Car - route relations
             | c,d       | eastbound,eastbound  | I 80 $east; CO 93 $east,I 80 $east; CO 93 $east |
 
 
-#    Scenario: Forward/backward assignment on non-divided roads with role direction tag
-#        Given the node map
-#            """
-#              a----------------b
-#            """
-#
-#        And the ways
-#            | nodes | name      | highway  | ref   | oneway |
-#            | ab    | mainroad  | motorway | I 80  | no     |
-#
-#        And the relations
-#            | type        | direction | way:forward | route | ref | network |
-#            | route       | west      | ab          | road  | 80  | US:I    |
-#
-#        And the relations
-#            | type        | direction | way:backward | route | ref | network |
-#            | route       | east      | ab           | road  | 80  | US:I    |
-#
-#        When I route I should get
-#            | waypoints | route              | ref                    |
-#            | b,a       | mainroad,mainroad  | I 80 $west,I 80 $west  |
-#            | a,b       | mainroad,mainroad  | I 80 $east,I 80 $east  |
+    Scenario: Forward/backward assignment on non-divided roads with role direction tag
+        Given the profile file "car" initialized with
+        """
+        profile.cardinal_directions = true
+        """
+
+        Given the node map
+            """
+              a----------------b
+            """
+
+        And the ways
+            | nodes | name      | highway  | ref   | oneway |
+            | ab    | mainroad  | motorway | I 80  | no     |
+
+        And the relations
+            | type        | direction | way:forward | route | ref | network |
+            | route       | west      | ab          | road  | 80  | US:I    |
+
+        And the relations
+            | type        | direction | way:backward | route | ref | network |
+            | route       | east      | ab           | road  | 80  | US:I    |
+
+        When I route I should get
+            | waypoints | route              | ref                    |
+            | a,b       | mainroad,mainroad  | I 80 $west,I 80 $west  |
+            | b,a       | mainroad,mainroad  | I 80 $east,I 80 $east  |
 
 
     Scenario: Conflict between role and direction
+        Given the profile file "car" initialized with
+        """
+        profile.cardinal_directions = true
+        """
+
         Given the node map
             """
               a----------------b
@@ -118,6 +194,11 @@ Feature: Car - route relations
 
 
     Scenario: Conflict between role and superrelation direction
+        Given the profile file "car" initialized with
+        """
+        profile.cardinal_directions = true
+        """
+
         Given the node map
             """
               a----------------b
@@ -140,6 +221,11 @@ Feature: Car - route relations
             | a,b       | eastbound,eastbound | I 80,I 80 |
 
     Scenario: Conflict between role and superrelation role
+        Given the profile file "car" initialized with
+        """
+        profile.cardinal_directions = true
+        """
+
         Given the node map
             """
               a----------------b
@@ -162,6 +248,11 @@ Feature: Car - route relations
             | a,b       | eastbound,eastbound  | I 80,I 80 |
 
     Scenario: Direction only available via superrelation role
+        Given the profile file "car" initialized with
+        """
+        profile.cardinal_directions = true
+        """
+
         Given the node map
             """
               a----------------b
@@ -184,6 +275,11 @@ Feature: Car - route relations
             | a,b       | eastbound,eastbound  | I 80 $east,I 80 $east |
 
     Scenario: Direction only available via superrelation direction
+        Given the profile file "car" initialized with
+        """
+        profile.cardinal_directions = true
+        """
+
         Given the node map
             """
               a----------------b
@@ -205,6 +301,7 @@ Feature: Car - route relations
             | waypoints | route                | ref                   |
             | a,b       | eastbound,eastbound  | I 80 $east,I 80 $east |
 
+
 #    Scenario: Three levels of indirection
 #        Given the node map
 #            """
@@ -229,4 +326,4 @@ Feature: Car - route relations
 #
 #        When I route I should get
 #            | waypoints | route                | ref                   |
-#            | a,b       | eastbound,eastbound  | I 80 $east,I 80 $east |
+#            | a,b       | eastbound,eastbound  | I 80 $east,I 80 $east |

features/car/side_bias.feature

@@ -4,7 +4,7 @@ Feature: Testbot - side bias
     Scenario: Left-hand bias
         Given the profile file "car" initialized with
         """
-        profile.left_hand_driving = true
+        profile.properties.left_hand_driving = true
         profile.turn_bias = 1.075
         """
         And the node map
@@ -20,14 +20,14 @@ Feature: Testbot - side bias
             | bd    |
 
         When I route I should get
-            | from | to | route    | time       |
-            | d    | a  | bd,ab,ab | 24s +-1    |
-            | d    | c  | bd,bc,bc | 27s +-1    |
+            | from | to | route    | time       | driving_side   |
+            | d    | a  | bd,ab,ab | 24s +-1    | left,left,left |
+            | d    | c  | bd,bc,bc | 27s +-1    | left,left,left |
 
     Scenario: Right-hand bias
         Given the profile file "car" initialized with
         """
-        profile.left_hand_driving = true
+        profile.properties.left_hand_driving = true
         profile.turn_bias = 1 / 1.075
         """
         And the node map
@@ -43,14 +43,14 @@ Feature: Testbot - side bias
             | bd    |
 
         When I route I should get
-            | from | to | route    | time    | #                                   |
-            | d    | a  | bd,ab,ab | 27s +-1 | should be inverse of left hand bias |
-            | d    | c  | bd,bc,bc | 24s +-1 |                                     |
+            | from | to | route    | time    | driving_side   | #                                   |
+            | d    | a  | bd,ab,ab | 27s +-1 | left,left,left | should be inverse of left hand bias |
+            | d    | c  | bd,bc,bc | 24s +-1 | left,left,left |                                     |
 
     Scenario: Roundabout exit counting for left sided driving
-        Given the profile file "testbot" initialized with
+        Given the profile file "car" initialized with
         """
-        profile.left_hand_driving = true
+        profile.properties.left_hand_driving = true
         """
         And a grid size of 10 meters
         And the node map
@@ -70,10 +70,10 @@ Feature: Testbot - side bias
             | bcegb  | roundabout |
 
         When I route I should get
-           | waypoints | route    | turns                                         |
-           | a,d       | ab,cd,cd | depart,roundabout turn left exit-1,arrive     |
-           | a,f       | ab,ef,ef | depart,roundabout turn straight exit-2,arrive |
-           | a,h       | ab,gh,gh | depart,roundabout turn right exit-3,arrive    |
+           | waypoints | route    | driving_side   | turns                                         |
+           | a,d       | ab,cd,cd | left,left,left | depart,roundabout turn left exit-1,arrive     |
+           | a,f       | ab,ef,ef | left,left,left | depart,roundabout turn straight exit-2,arrive |
+           | a,h       | ab,gh,gh | left,left,left | depart,roundabout turn right exit-3,arrive    |
 
 
     Scenario: Left-hand bias via location-dependent tags
@@ -92,9 +92,9 @@ Feature: Testbot - side bias
         And the extract extra arguments "--location-dependent-data test/data/regions/null-island.geojson"
 
         When I route I should get
-            | from | to | route    | time       |
-            | d    | a  | bd,ab,ab | 24s +-1    |
-            | d    | c  | bd,bc,bc | 27s +-1    |
+            | from | to | route    | driving_side   | time       |
+            | d    | a  | bd,ab,ab | left,left,left | 24s +-1    |
+            | d    | c  | bd,bc,bc | left,left,left | 27s +-1    |
 
 
     Scenario: Left-hand bias via OSM tags
@@ -113,6 +113,6 @@ Feature: Testbot - side bias
         And the extract extra arguments "--location-dependent-data test/data/regions/null-island.geojson"
 
         When I route I should get
-            | from | to | route    | time       |
-            | d    | a  | bd,ab,ab | 27s +-1    |
-            | d    | c  | bd,bc,bc | 24s +-1    |
+            | from | to | route    | driving_side      | time       |
+            | d    | a  | bd,ab,ab | right,right,right | 27s +-1    |
+            | d    | c  | bd,bc,bc | right,right,right | 24s +-1    |

features/car/weight.feature

@@ -6,9 +6,9 @@ Feature: Car - weights
         And the node map
             """
             a--b--c
-               |
-               d
-               |
+               |  |
+               d  |
+               |  |
             e--f--g
             """
         And the ways
@@ -19,7 +19,7 @@ Feature: Car - weights
             | bdf   | service     |
         When I route I should get
             | from | to | route          | speed   | weight |
-            | a    | e  | abc,cg,efg,efg | 28 km/h | 126.6  |
+            | a    | e  | abc,cg,efg,efg | 29 km/h | 122.4  |
             | a    | d  | abc,bdf,bdf    | 18 km/h | 71.7   |
 
     Scenario: Does not jump off the highway to go down service road
@@ -59,7 +59,7 @@ Feature: Car - weights
         When I route I should get
             | from | to | route       | speed   | weight |
             | a    | d  | ab,bc,cd,cd | 65 km/h | 44.4   |
-            | a    | e  | ab,be,be    | 14 km/h | 112    |
+            | a    | e  | ab,be,be    | 14 km/h | 111.8  |
 
     Scenario: Distance weights
         Given the profile file "car" initialized with

features/foot/barrier.feature

@@ -10,6 +10,7 @@ Feature: Barriers
             |                | x     |
             | bollard        | x     |
             | gate           | x     |
+            | lift_gate      | x     |
             | cycle_barrier  | x     |
             | cattle_grid    | x     |
             | border_control | x     |

features/guidance/advanced-lanes.feature

@@ -47,7 +47,7 @@ Feature: Turn Lane Guidance
                           e
             a . . b . . . c g
                     `     .
-                       `  .
+                      `   .
                         ` d
                           f
             """

features/guidance/collapse.feature

@@ -50,6 +50,32 @@ Feature: Collapse
             | i,h       | second,first,first   | depart,turn left,arrive      | i,f,h     |
             | i,l       | second,second,second | depart,continue uturn,arrive | i,f,l     |
 
+   	Scenario: Segregated Intersection, Cross Belonging to Single Street
+        Given the node map
+            """
+                  g
+
+            c     b   a
+            d     e   f
+
+                  h   i
+            """
+
+        And the ways
+            | nodes | highway | name   | oneway |
+            | ab    | primary | first  | yes    |
+            | bc    | primary | first  | yes    |
+            | de    | primary | first  | yes    |
+            | ef    | primary | first  | yes    |
+            | gb    | primary | second | no     |
+            | be    | primary | second | no     |
+            | eh    | primary | second | yes    |
+            | ei    | primary | third  | yes    |
+
+        When I route I should get
+            | waypoints | route                      | turns                                      | locations |
+            | a,i       | first,second,third,third   | depart,turn left,turn slight left,arrive   | a,b,e,i   |
+
     Scenario: Segregated Intersection, Cross Belonging to Correct Street
         Given the node map
             """
@@ -1074,3 +1100,27 @@ Feature: Collapse
         When I route I should get
             | waypoints | bearings | route          | turns                                             | locations |
             | 1,2       | 90 270   | ab,bd,bd,ab,ab | depart,turn left,continue uturn,turn right,arrive | _,b,d,b,_ |
+
+
+    # https://www.openstreetmap.org/#map=18/37.74844/-122.40275
+    Scenario: Don't use destinations as names
+        Given the node map
+            """
+            f - - - - e - - - - d
+                      |
+                      |
+                      |
+                      |
+                      |
+            a - - - - b - - - - c
+            """
+
+        And the ways
+            | nodes | highway       | name  | oneway | destination:ref |
+            | abc   | residential   | road  | yes    |                 |
+            | def   | motorway_link |       | yes    | US 101          |
+            | be    | residential   | cross | no     |                 |
+
+        When I route I should get
+            | waypoints | route        | turns                                |
+            | a,f       | road,cross,, | depart,turn left,on ramp left,arrive |

features/guidance/merge-segregated-roads.feature

@@ -354,9 +354,9 @@ Feature: Merge Segregated Roads
             | hb    | road   | yes    |
 
         When I route I should get
-            | waypoints | turns         | route       | intersections 									  |
+            | waypoints | turns         | route       | intersections									  |
             | a,f       | depart,arrive | road,road   | true:180,false:0 true:180,false:0 true:180;true:0 |
-            | c,f       | depart,arrive | bridge,road | true:180,false:0 true:180;true:0 				  |
+            | c,f       | depart,arrive | bridge,road | true:180,false:0 true:180;true:0				  |
             | 1,f       | depart,arrive | bridge,road | true:180,false:0 true:180;true:0                  |
             | f,a       | depart,arrive | road,road   | true:0,true:0 false:180,true:0 false:180;true:180 |
             | g,a       | depart,arrive | bridge,road | true:0,true:0 false:180;true:180                  |
@@ -518,35 +518,32 @@ Feature: Merge Segregated Roads
 
         # the goal here should be not to mention the intersection in the middle at all and also suppress the segregated parts
         When I route I should get
-            | waypoints | route            | intersections																																    |
+            | waypoints | route            | intersections																																	|
             | a,l       | horiz,vert,vert  | true:90;false:0 true:60 true:90 true:180 false:270,true:60 false:120 false:240 false:300,true:0 false:90 false:180 false:240 true:270;true:180 |
-            | a,d       | horiz,horiz      | true:90,false:0 true:60 true:90 true:180 false:270,false:0 true:90 false:180 false:270 true:300;true:270									    |
+            | a,d       | horiz,horiz      | true:90,false:0 true:60 true:90 true:180 false:270,false:0 true:90 false:180 false:270 true:300;true:270										|
             | j,h       | vert,horiz,horiz | true:0;true:0 true:90 false:180 false:270 true:300,false:60 false:120 false:240 true:300,false:0 false:90 false:120 true:180 true:270;true:90  |
-            | j,l       | vert,vert        | true:0,true:0 true:90 false:180 false:270 true:300,true:0 false:90 false:180 true:240 false:270;true:180									    |
+            | j,l       | vert,vert        | true:0,true:0 true:90 false:180 false:270 true:300,true:0 false:90 false:180 true:240 false:270;true:180										|
 
 
     Scenario: Square Area - Don't merge almost circular roads
         Given a grid size of 2 meters
         Given the node map
             """
-                                 i
-                                /
-                               /
-                              /
-                       b---- g .
-                            /     p .
-                  a        /          \           f
-                   \      /             o        /
-                     \   /               \     /
-                       c                  n   /
-                     /  \                  \/
-                    /    k                  e
-                   /     \               /
-                  h       l            /
+                           i
+                       b    `
+                         `   `    p .
+                  a        ` g` `     \         f
+                   \      /             o      /
+                     \   /               \    /
+                  h - - c                  n /
+                        \                  \/
+                         k                  e
+                         \               /
+                          l            /
                             \        /
                               m  . d
-                                 /
-                                j
+                                  /
+                                 j
             """
 
         And the ways
@@ -560,5 +557,144 @@ Feature: Merge Segregated Roads
             | jd          | Hubertusallee  | yes    |
 
         When I route I should get
-            | waypoints | route                                      | turns                       |
-            | i,h       | Kurfürstendamm,Hubertusallee,Hubertusallee | depart,turn straight,arrive |
+            | waypoints | route                                                    | turns                               |
+            | i,h       | Kurfürstendamm,Rathenauplatz,Hubertusallee,Hubertusallee | depart,turn right,turn right,arrive |
+
+    # https://www.openstreetmap.org/#map=19/52.46339/13.40272
+    Scenario: Do not merge links between segregated roads
+        Given the node map
+            """
+            f
+              `````````` ..............
+                                        ` ` ` `  e - - - - - - - d
+            a                                    1
+             ```````````..............           |
+                                      `````````` b - - - - - - - c
+                                                 |
+                                                 |
+                                                 |
+                                                 |
+                                                 g
+            """
+
+        And the ways
+            | nodes | name | oneway |
+            | ab    | germ | yes    |
+            | bc    | ober | yes    |
+            | de    | ober | yes    |
+            | ef    | germ | yes    |
+            | eb    | germ | no     |
+            | gb    | germ | no     |
+
+        When I route I should get
+            | waypoints | route          | turns                        |
+			| a,c       | germ,ober      | depart,arrive                |
+			| a,g       | germ,germ,germ | depart,continue right,arrive |
+			| a,1       | germ,germ,germ | depart,continue left,arrive  |
+			| d,g       | ober,germ,germ | depart,turn left,arrive      |
+
+    # https://www.openstreetmap.org/#map=19/51.32888/6.57059
+    Scenario: Places in presence of oneways
+        Given the node map
+            """
+                    i                                                                                                           l
+                    |                                                                                                           |
+                    |                                                                                                           |
+                    g - - - - - - - - - - - - - - - - - - - - - - - - - 1 - - - - - - - - - - - - - - - - - - - - - - - - - - - f
+                    |                                                                                                           |
+                    |                                                                                                           |
+            a - - - b - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2 - - - - - - - - - - - - - - - c - - - d
+                    |                                                                                                           |
+                    |                                                                                                           |
+                    j                                                                                                           k
+            """
+
+        And the ways
+            | nodes | name     | oneway |
+            | ab    | schwert  | yes    |
+            | cd    | schwert  | yes    |
+            | ig    | luise    | yes    |
+            | bj    | luise    | yes    |
+            | kc    | marianne | yes    |
+            | fl    | marianne | yes    |
+            | bc    | albrecht | no     |
+            | fg    | albrecht | no     |
+            | gb    | albrecht | yes    |
+            | cf    | albrecht | yes    |
+
+        When I route I should get
+            | waypoints | route                                       | turns                                                        |
+            | a,l       | schwert,albrecht,marianne,marianne          | depart,new name straight,turn left,arrive                    |
+            | a,j       | schwert,luise,luise                         | depart,turn right,arrive                                     |
+			| a,1       | schwert,albrecht,albrecht,albrecht          | depart,new name straight,continue uturn,arrive               |
+			| k,l       | marianne,marianne                           | depart,arrive                                                |
+            | k,j       | marianne,albrecht,luise,luise               | depart,turn left,turn left,arrive                            |
+            | k,d       | marianne,schwert,schwert                    | depart,turn right,arrive                                     |
+			| i,j       | luise,luise                                 | depart,arrive                                                |
+            | i,d       | luise,albrecht,schwert,schwert              | depart,turn left,turn straight,arrive                        |
+			| i,l       | luise,albrecht,marianne,marianne            | depart,turn left,turn left,arrive                            |
+
+    # https://www.openstreetmap.org/#map=19/52.46339/13.40272
+    Scenario: Do not merge links between segregated roads
+        Given the node map
+            """
+                                                               d
+            f...............                                   |
+                            `````````` ..............          |
+            a...............                          ` ` ` `  e
+                            ``````````..............           1
+                                                    `````````` b
+                                                                    - - - - - - - c
+            """
+
+        And the ways
+            | nodes | name | oneway |
+            | ab    | otto | yes    |
+            | bc    | otto | no     |
+            | de    | neu  | no     |
+            | ef    | otto | yes    |
+            | eb    | otto | no     |
+
+        When I route I should get
+            | waypoints | route               | turns                                      | #	|
+            | a,c       | otto,otto           | depart,arrive                              |	|
+			| a,f       | otto,otto,otto      | depart,continue uturn,arrive               |    |
+			| a,1       | otto,otto,otto      | depart,continue left,arrive                |    |
+			| a,d       | otto,neu,neu        | depart,turn left,arrive                    |    |
+            | c,1       | otto,otto           | depart,arrive                              |    |
+            | c,f       | otto,otto,otto      | depart,continue left,arrive                | Ideally, this would be depart,arrive, but the obvious discovery making the turn onto `1` from `c` obvious interferes here |
+
+    # https://www.openstreetmap.org/#map=18/50.94608/7.02030
+    Scenario: Do not merge oneway places
+        Given the node map
+            """
+                                j
+                                |
+                                |
+            g - f - - - - - - - e
+                |               |
+                |               |
+                |               d
+                |                \
+                |                .c.
+                a - - - - - - b`    `
+                |                    `
+                |                      ` h
+                |
+                |
+                i
+            """
+
+        And the ways
+            | nodes | name | oneway |
+            | efabc | kobe | yes    |
+            | edc   | kobe | no     |
+            | fg    | arn  | no     |
+            | ia    | kobu | yes    |
+            | hc    | wei  | no     |
+            | ej    | wei  | no     |
+
+        When I route I should get
+            | waypoints | route          | turns                       |
+            | j,h       | wei,wei		 | depart,arrive			   |
+            | a,d       | kobe,kobe,kobe | depart,continue left,arrive |

features/guidance/merge.feature

@@ -126,3 +126,24 @@ Feature: Merging
         When I route I should get
             | waypoints | route      | turns                            |
             | d,c       | ,A100,A100 | depart,merge slight right,arrive |
+
+
+    # https://www.openstreetmap.org/way/254299122
+    @merge
+    Scenario: Merge onto a motorway with junction references
+        Given the node map
+            """
+            a     b      c     d
+            e                  f
+            """
+
+        And the ways
+            | nodes | name | junction:ref | highway       | oneway |
+            | abc   | A100 |              | motorway      | yes    |
+            | cd    | A100 | 1A           | motorway      | yes    |
+            | eb    |      |              | motorway_link | yes    |
+            | cf    |      | 1B           | motorway_link | yes    |
+
+        When I route I should get
+            | waypoints | route      | turns                           |
+            | e,d       | ,A100,A100 | depart,merge slight left,arrive |

features/guidance/perception.feature

@@ -36,6 +36,36 @@ Feature: Simple Turns
             | f,a       | depart,arrive                   | road,road      | true:0,true:0 false:150 false:180;true:180   |
             | e,a       | depart,turn slight right,arrive | turn,road,road | true:333;true:0 false:150 false:180;true:180 |
 
+    Scenario: Turning into splitting road - no improvement
+        Given the node map
+            """
+                a
+                b
+              / |
+            c   d - e
+            |   |
+            |   |
+            |   |
+            |   |
+            |   |
+            |   |
+            |   |
+            |   |
+            g   f
+            """
+
+        And the ways
+            | nodes | name | highway | oneway |
+            | ab    | road | primary | no     |
+            | bcg   | road | primary | yes    |
+            | fdb   | road | primary | yes    |
+            | ed    | turn | primary | yes    |
+
+        When I route I should get
+            | waypoints | turns                    | route          | intersections                               |
+            | f,a       | depart,arrive            | road,road      | true:0,true:0 false:90 false:180;true:180   |
+            | e,a       | depart,turn right,arrive | turn,road,road | true:270;true:0 false:90 false:180;true:180 |
+
     Scenario: Turning into splitting road
         Given the node map
         """

features/guidance/roundabout-left-sided.feature

@@ -5,7 +5,7 @@ Feature: Basic Roundabout
         Given a grid size of 10 meters
         Given the profile file "car" initialized with
             """
-            profile.left_hand_driving = true
+            profile.properties.left_hand_driving = true
             """
 
     Scenario: Roundabout exit counting for left sided driving

features/guidance/roundabout.feature

@@ -765,7 +765,7 @@ Feature: Basic Roundabout
            | e,h       | 90 135   | edf,gch,gch,gch | depart,roundabout-exit-2,exit roundabout straight,arrive   |
            | g,f       | 45 90    | gch,edf,edf,edf | depart,roundabout-exit-2,exit roundabout right,arrive      |
            | g,h       | 45 135   | gch,gch,gch     | depart,exit roundabout right,arrive                        |
-           | e,e       | 90 270   | edf,edf,edf,edf | depart,roundabout-exit-3,exit roundabout sharp left,arrive |
+           | e,e       | 90 270   | edf,edf,edf     | depart,continue uturn,arrive                               |
 
     Scenario: CCW and CW roundabouts with overlaps
         Given the node map

features/guidance/turn.feature

@@ -972,6 +972,8 @@ Feature: Simple Turns
                     d
 
                   h
+
+                  q
             """
 
         And the nodes
@@ -981,16 +983,16 @@ Feature: Simple Turns
         And the ways
             | nodes | name                           | highway     | oneway |
             | yf    | yf                             | trunk_link  | yes    |
-            | gfeh  | Centreville Road               | primary     |        |
+            | gfehq | Centreville Road               | primary     |        |
             | fi    | fi                             | trunk_link  | yes    |
             | ij    | Bloomingdale Road              | residential |        |
-            | jkabx | Blue Star Memorial Hwy         | trunk       |        |
+            | jkabx | Blue Star Memorial Hwy         | trunk       | yes    |
             | bcde  | bcde                           | trunk_link  | yes    |
             | kh    | kh                             | trunk_link  | yes    |
 
         When I route I should get
             | waypoints | turns                                        | route                                                         |
-            | a,h       | depart,off ramp right,turn sharp left,arrive | Blue Star Memorial Hwy,bcde,Centreville Road,Centreville Road |
+            | a,q       | depart,off ramp right,turn sharp left,arrive | Blue Star Memorial Hwy,bcde,Centreville Road,Centreville Road |
 
     @todo
     # https://www.openstreetmap.org/#map=20/52.51609/13.41080

features/options/extract/lua.feature

@@ -51,7 +51,7 @@ Feature: osrm-extract lua ways:get_nodes()
             | ab    |
         And the data has been saved to disk
 
-        When I try to run "osrm-extract --profile {profile_file} {osm_file} --location-dependent-data test/data/regions/null-island.geojson --use-locations-cache=false"
+        When I try to run "osrm-extract --profile {profile_file} {osm_file} --location-dependent-data test/data/regions/null-island.geojson --disable-location-cache"
         Then it should exit with an error
         And stderr should contain "invalid location"
 
@@ -79,7 +79,7 @@ Feature: osrm-extract lua ways:get_nodes()
             | ab    |
         And the data has been saved to disk
 
-        When I run "osrm-extract --profile {profile_file} {osm_file} --location-dependent-data test/data/regions/null-island.geojson  --use-locations-cache=false"
+        When I run "osrm-extract --profile {profile_file} {osm_file} --location-dependent-data test/data/regions/null-island.geojson  --disable-location-cache"
         Then it should exit successfully
         And stdout should contain "answer 42"
         And stdout should contain "boolean true"
@@ -116,7 +116,7 @@ Feature: osrm-extract lua ways:get_nodes()
             | ef    | Null Island    |
         And the data has been saved to disk
 
-        When I run "osrm-extract --profile {profile_file} {osm_file} --location-dependent-data test/data/regions/null-island.geojson --location-dependent-data test/data/regions/hong-kong.geojson --use-locations-cache=false"
+        When I run "osrm-extract --profile {profile_file} {osm_file} --location-dependent-data test/data/regions/null-island.geojson --location-dependent-data test/data/regions/hong-kong.geojson --disable-location-cache"
         Then it should exit successfully
         And stdout should not contain "1 GeoJSON polygon"
         And stdout should contain "2 GeoJSON polygons"

features/options/profiles/invalid_version.feature

@@ -24,7 +24,7 @@ Feature: Invalid profile API versions
     Scenario: Profile API version too high
         Given the profile file
           """
-          api_version = 4
+          api_version = 5
           """
         And the node map
           """

features/support/route.js

@@ -267,6 +267,10 @@ module.exports = function () {
         return this.extractInstructionList(instructions, s => s.mode);
     };
 
+    this.drivingSideList = (instructions) => {
+        return this.extractInstructionList(instructions, s => s.driving_side);
+    };
+
     this.classesList = (instructions) => {
         return this.extractInstructionList(instructions, s => '[' + s.intersections.map(i => '(' + (i.classes ? i.classes.join(',') : '') + ')').join(',') + ']');
     };

features/support/shared_steps.js

@@ -35,7 +35,8 @@ module.exports = function () {
                     if (err) return cb(err);
                     if (body && body.length) {
                         let destinations, exits, pronunciations, instructions, refs, bearings, turns, modes, times, classes,
-                            distances, summary, intersections, lanes, locations, annotation, weight_name, weights, approaches;
+                            distances, summary, intersections, lanes, locations, annotation, weight_name, weights, approaches,
+                            driving_sides;
 
                         let json = JSON.parse(body);
 
@@ -53,6 +54,7 @@ module.exports = function () {
                             turns = this.turnList(json.routes[0]);
                             intersections = this.intersectionList(json.routes[0]);
                             modes = this.modeList(json.routes[0]);
+                            driving_sides = this.drivingSideList(json.routes[0]);
                             classes = this.classesList(json.routes[0]);
                             times = this.timeList(json.routes[0]);
                             distances = this.distanceList(json.routes[0]);
@@ -186,6 +188,10 @@ module.exports = function () {
                         putValue('weight', weight);
                         putValue('approach', approaches);
 
+                        if (driving_sides) {
+                            putValue('driving_side', driving_sides);
+                        }
+
                         for (var key in row) {
                             if (this.FuzzyMatch.match(got[key], row[key])) {
                                 got[key] = row[key];

features/testbot/alternative_loop.feature

@@ -31,40 +31,32 @@ Feature: Alternative route
             | 5    | 6  | dc,ca,ab,bd,dc,dc |             |
             | 7    | 8  | ca,ab,bd,dc,ca,ca |             |
 
-    # This test case does not work in a platform independent way
-    # since it depends on a specific CH structure that is only
-    # present on linux it seems.
-    @4111 @todo
-    Scenario: Alternative Loop Paths with single node path
+
+    @mld-only
+    Scenario: Alternative loop paths on a single node with an asymmetric circle
+        # The test checks only MLD implementation, alternatives results are unpredictable for CH on windows (#4691, #4693)
+        Given a grid size of 10 meters
         Given the node map
             """
-            a1b2c3d
-
-
-            e     f
+              a b  c
+            l       d
+            k       e
+            j       f
+              i h g
             """
 
+        And the nodes
+            | node | barrier |
+            | i    | bollard |
+            | g    | bollard |
+
         And the ways
-            | nodes | maxspeed |
-            | ab    |      30  |
-            | bc    |       3  |
-            | cd    |      30  |
-            | ae    |      30  |
-            | ef    |      30  |
-            | fd    |      30  |
+            | nodes         | oneway |
+            | abcdefghijkla | no     |
 
         And the query options
             | alternatives | true |
 
         When I route I should get
-            | from | to | route    | alternative       |
-            | b    | c  | bc,bc    | ab,ae,ef,fd,cd,cd |
-            #| c    | b  | bc,bc    | cd,fd,ef,ae,ab,ab | # alternative path depends on phantom snapping order
-            | 1    | c  | ab,bc,bc | ab,ae,ef,fd,cd,cd |
-            #| c    | 1  | bc,ab    | cd,fd,ef,ae,ab    | # alternative path depends on phantom snapping order
-            | 2 | c | bc,bc          |                   |
-            | c | 2 | bc,bc          |                   |
-            | 1 | 3 | ab,ae,ef,fd,cd | ab,bc,cd          |
-            #| 3 | 1 | cd,fd,ef,ae,ab | cd,bc,ab          | # alternative path depends on phantom snapping order
-            | b | 3 | bc,cd          | ab,ae,ef,fd,cd    |
-            #| 3 | b | cd,bc,bc       | cd,fd,ef,ae,ab,ab | # alternative path depends on phantom snapping order
+            | from | to | route                       | alternative                 | weight |
+            | e    | k  | abcdefghijkla,abcdefghijkla | abcdefghijkla,abcdefghijkla |    6.8 |

include/contractor/contract_excludable_graph.hpp

@@ -81,6 +81,8 @@ inline auto contractExcludableGraph(ContractorGraph contractor_graph_,
         auto filtered_core_graph =
             shared_core_graph.Filter([&filter](const NodeID node) { return filter[node]; });
 
+        contractGraph(filtered_core_graph, is_shared_core, is_shared_core, node_weights);
+
         edge_container.Merge(toEdges<QueryEdge>(std::move(filtered_core_graph)));
     }
 

include/engine/api/json_factory.hpp

@@ -33,22 +33,8 @@ namespace json
 namespace detail
 {
 
-std::string instructionTypeToString(extractor::guidance::TurnType::Enum type);
-std::string instructionModifierToString(extractor::guidance::DirectionModifier::Enum modifier);
-
-/**
- * Returns a string representing all instruction types (including internal types that
- * are normally not exposed in route responses)
- *
- * @param type the TurnType value to convert into a string
- * @return a string representing the turn type (e.g. `turn` or `continue`)
- */
-std::string internalInstructionTypeToString(extractor::guidance::TurnType::Enum type);
-
 util::json::Array coordinateToLonLat(const util::Coordinate coordinate);
 
-std::string modeToString(const extractor::TravelMode mode);
-
 /**
  * Ensures that a bearing value is a whole number, and clamped to the range 0-359
  */

include/engine/api/nearest_api.hpp

@@ -38,8 +38,50 @@ class NearestAPI final : public BaseAPI
                        phantom_nodes.front().end(),
                        waypoints.values.begin(),
                        [this](const PhantomNodeWithDistance &phantom_with_distance) {
-                           auto waypoint = MakeWaypoint(phantom_with_distance.phantom_node);
+                           auto &phantom_node = phantom_with_distance.phantom_node;
+                           auto waypoint = MakeWaypoint(phantom_node);
                            waypoint.values["distance"] = phantom_with_distance.distance;
+
+                           util::json::Array nodes;
+
+                           std::uint64_t from_node = 0;
+                           std::uint64_t to_node = 0;
+
+                           std::vector<NodeID> forward_geometry;
+                           if (phantom_node.forward_segment_id.enabled)
+                           {
+                               auto segment_id = phantom_node.forward_segment_id.id;
+                               const auto geometry_id = facade.GetGeometryIndex(segment_id).id;
+                               forward_geometry =
+                                   facade.GetUncompressedForwardGeometry(geometry_id);
+
+                               auto osm_node_id = facade.GetOSMNodeIDOfNode(
+                                   forward_geometry[phantom_node.fwd_segment_position]);
+                               to_node = static_cast<std::uint64_t>(osm_node_id);
+                           }
+
+                           if (phantom_node.reverse_segment_id.enabled)
+                           {
+                               auto segment_id = phantom_node.reverse_segment_id.id;
+                               const auto geometry_id = facade.GetGeometryIndex(segment_id).id;
+                               std::vector<NodeID> geometry =
+                                   facade.GetUncompressedForwardGeometry(geometry_id);
+                               auto osm_node_id = facade.GetOSMNodeIDOfNode(
+                                   geometry[phantom_node.fwd_segment_position + 1]);
+                               from_node = static_cast<std::uint64_t>(osm_node_id);
+                           }
+                           else if (phantom_node.forward_segment_id.enabled &&
+                                    phantom_node.fwd_segment_position > 0)
+                           {
+                               // In the case of one way, rely on forward segment only
+                               auto osm_node_id = facade.GetOSMNodeIDOfNode(
+                                   forward_geometry[phantom_node.fwd_segment_position - 1]);
+                               from_node = static_cast<std::uint64_t>(osm_node_id);
+                           }
+                           nodes.values.push_back(from_node);
+                           nodes.values.push_back(to_node);
+                           waypoint.values["nodes"] = std::move(nodes);
+
                            return waypoint;
                        });
 

include/engine/datafacade/contiguous_internalmem_datafacade.hpp

@@ -885,6 +885,11 @@ class ContiguousInternalMemoryDataFacadeBase : public BaseDataFacade
         // TODO: can be moved to a data block indexed by GeometryID
         return edge_based_node_data.IsLeftHandDriving(id);
     }
+
+    bool IsSegregated(const NodeID id) const override final
+    {
+        return edge_based_node_data.IsSegregated(id);
+    }
 };
 
 template <typename AlgorithmT> class ContiguousInternalMemoryDataFacade;

include/engine/datafacade/datafacade_base.hpp

@@ -191,6 +191,8 @@ class BaseDataFacade
     virtual util::guidance::EntryClass GetEntryClass(const EdgeID turn_id) const = 0;
 
     virtual bool IsLeftHandDriving(const NodeID id) const = 0;
+
+    virtual bool IsSegregated(const NodeID) const = 0;
 };
 }
 }

include/engine/guidance/assemble_steps.hpp

@@ -56,6 +56,7 @@ inline std::vector<RouteStep> assembleSteps(const datafacade::BaseDataFacade &fa
     const auto source_node_id = source_traversed_in_reverse ? source_node.reverse_segment_id.id
                                                             : source_node.forward_segment_id.id;
     const auto source_name_id = facade.GetNameIndex(source_node_id);
+    bool is_segregated = facade.IsSegregated(source_node_id);
     const auto source_mode = facade.GetTravelMode(source_node_id);
     auto source_classes = facade.GetClasses(facade.GetClassData(source_node_id));
 
@@ -127,6 +128,7 @@ inline std::vector<RouteStep> assembleSteps(const datafacade::BaseDataFacade &fa
                 intersection.classes = facade.GetClasses(path_point.classes);
 
                 steps.push_back(RouteStep{step_name_id,
+                                          is_segregated,
                                           name.to_string(),
                                           ref.to_string(),
                                           pronunciation.to_string(),
@@ -141,15 +143,18 @@ inline std::vector<RouteStep> assembleSteps(const datafacade::BaseDataFacade &fa
                                           maneuver,
                                           leg_geometry.FrontIndex(segment_index),
                                           leg_geometry.BackIndex(segment_index) + 1,
-                                          {intersection}});
+                                          {intersection},
+                                          path_point.is_left_hand_driving});
 
                 if (leg_data_index + 1 < leg_data.size())
                 {
                     step_name_id = leg_data[leg_data_index + 1].name_id;
+                    is_segregated = leg_data[leg_data_index + 1].is_segregated;
                 }
                 else
                 {
                     step_name_id = facade.GetNameIndex(target_node_id);
+                    is_segregated = facade.IsSegregated(target_node_id);
                 }
 
                 // extract bearings
@@ -205,6 +210,7 @@ inline std::vector<RouteStep> assembleSteps(const datafacade::BaseDataFacade &fa
         intersection.classes = facade.GetClasses(facade.GetClassData(target_node_id));
         BOOST_ASSERT(duration >= 0);
         steps.push_back(RouteStep{step_name_id,
+                                  is_segregated,
                                   facade.GetNameForID(step_name_id).to_string(),
                                   facade.GetRefForID(step_name_id).to_string(),
                                   facade.GetPronunciationForID(step_name_id).to_string(),
@@ -219,7 +225,8 @@ inline std::vector<RouteStep> assembleSteps(const datafacade::BaseDataFacade &fa
                                   maneuver,
                                   leg_geometry.FrontIndex(segment_index),
                                   leg_geometry.BackIndex(segment_index) + 1,
-                                  {intersection}});
+                                  {intersection},
+                                  facade.IsLeftHandDriving(target_node_id)});
     }
     // In this case the source + target are on the same edge segment
     else
@@ -247,6 +254,7 @@ inline std::vector<RouteStep> assembleSteps(const datafacade::BaseDataFacade &fa
         const EdgeWeight duration = std::max(0, target_duration - source_duration);
 
         steps.push_back(RouteStep{source_name_id,
+                                  is_segregated,
                                   facade.GetNameForID(source_name_id).to_string(),
                                   facade.GetRefForID(source_name_id).to_string(),
                                   facade.GetPronunciationForID(source_name_id).to_string(),
@@ -261,7 +269,8 @@ inline std::vector<RouteStep> assembleSteps(const datafacade::BaseDataFacade &fa
                                   std::move(maneuver),
                                   leg_geometry.FrontIndex(segment_index),
                                   leg_geometry.BackIndex(segment_index) + 1,
-                                  {intersection}});
+                                  {intersection},
+                                  facade.IsLeftHandDriving(source_node_id)});
     }
 
     BOOST_ASSERT(segment_index == number_of_segments - 1);
@@ -287,6 +296,7 @@ inline std::vector<RouteStep> assembleSteps(const datafacade::BaseDataFacade &fa
 
     BOOST_ASSERT(!leg_geometry.locations.empty());
     steps.push_back(RouteStep{target_name_id,
+                              facade.IsSegregated(target_node_id),
                               facade.GetNameForID(target_name_id).to_string(),
                               facade.GetRefForID(target_name_id).to_string(),
                               facade.GetPronunciationForID(target_name_id).to_string(),
@@ -301,7 +311,8 @@ inline std::vector<RouteStep> assembleSteps(const datafacade::BaseDataFacade &fa
                               std::move(maneuver),
                               leg_geometry.locations.size() - 1,
                               leg_geometry.locations.size(),
-                              {intersection}});
+                              {intersection},
+                              facade.IsLeftHandDriving(source_node_id)});
 
     BOOST_ASSERT(steps.front().intersections.size() == 1);
     BOOST_ASSERT(steps.front().intersections.front().bearings.size() == 1);

include/engine/guidance/collapsing_utility.hpp

@@ -121,9 +121,15 @@ inline bool haveSameMode(const RouteStep &first, const RouteStep &second, const
 // alias for readability
 inline bool haveSameName(const RouteStep &lhs, const RouteStep &rhs)
 {
+    const auto has_name_or_ref = [](auto const &step) {
+        return !step.name.empty() || !step.ref.empty();
+    };
+
     // make sure empty is not involved
-    if (lhs.name_id == EMPTY_NAMEID || rhs.name_id == EMPTY_NAMEID)
+    if (!has_name_or_ref(lhs) || !has_name_or_ref(rhs))
+    {
         return false;
+    }
 
     // easy check to not go over the strings if not necessary
     else if (lhs.name_id == rhs.name_id)

include/engine/guidance/route_step.hpp

@@ -60,6 +60,7 @@ inline IntermediateIntersection getInvalidIntersection()
 struct RouteStep
 {
     unsigned name_id;
+    bool is_segregated;
     std::string name;
     std::string ref;
     std::string pronunciation;
@@ -76,6 +77,7 @@ struct RouteStep
     std::size_t geometry_begin;
     std::size_t geometry_end;
     std::vector<IntermediateIntersection> intersections;
+    bool is_left_hand_driving;
 
     // remove all information from the route step, marking it as invalid (used to indicate empty
     // steps to be removed).
@@ -123,12 +125,13 @@ inline void RouteStep::Invalidate()
     duration = 0;
     distance = 0;
     weight = 0;
-    mode = TRAVEL_MODE_INACCESSIBLE;
+    mode = extractor::TRAVEL_MODE_INACCESSIBLE;
     maneuver = getInvalidStepManeuver();
     geometry_begin = 0;
     geometry_end = 0;
     intersections.clear();
     intersections.push_back(getInvalidIntersection());
+    is_left_hand_driving = false;
 }
 
 // Elongate by another step in front

include/engine/internal_route_result.hpp

@@ -27,6 +27,8 @@ struct PathData
     NodeID turn_via_node;
     // name of the street that leads to the turn
     unsigned name_id;
+    // segregated edge-based node that leads to the turn
+    bool is_segregated;
     // weight that is traveled on the segment until the turn is reached
     // including the turn weight, if one exists
     EdgeWeight weight_until_turn;
@@ -57,6 +59,9 @@ struct PathData
     util::guidance::TurnBearing pre_turn_bearing;
     // bearing (as seen from the intersection) post-turn
     util::guidance::TurnBearing post_turn_bearing;
+
+    // Driving side of the turn
+    bool is_left_hand_driving;
 };
 
 struct InternalRouteResult

include/engine/routing_algorithms/routing_base.hpp

@@ -164,6 +164,7 @@ void annotatePath(const FacadeT &facade,
         const auto turn_id = edge_data.turn_id; // edge-based graph edge index
         const auto node_id = *node_from;        // edge-based graph node index
         const auto name_index = facade.GetNameIndex(node_id);
+        const bool is_segregated = facade.IsSegregated(node_id);
         const auto turn_instruction = facade.GetTurnInstructionForEdgeID(turn_id);
         const extractor::TravelMode travel_mode = facade.GetTravelMode(node_id);
         const auto classes = facade.GetClassData(node_id);
@@ -185,12 +186,15 @@ void annotatePath(const FacadeT &facade,
                               : 0);
         const std::size_t end_index = weight_vector.size();
 
+        bool is_left_hand_driving = facade.IsLeftHandDriving(node_id);
+
         BOOST_ASSERT(start_index >= 0);
         BOOST_ASSERT(start_index < end_index);
         for (std::size_t segment_idx = start_index; segment_idx < end_index; ++segment_idx)
         {
             unpacked_path.push_back(PathData{id_vector[segment_idx + 1],
                                              name_index,
+                                             is_segregated,
                                              weight_vector[segment_idx],
                                              0,
                                              duration_vector[segment_idx],
@@ -202,7 +206,8 @@ void annotatePath(const FacadeT &facade,
                                              EMPTY_ENTRY_CLASS,
                                              datasource_vector[segment_idx],
                                              util::guidance::TurnBearing(0),
-                                             util::guidance::TurnBearing(0)});
+                                             util::guidance::TurnBearing(0),
+                                             is_left_hand_driving});
         }
         BOOST_ASSERT(unpacked_path.size() > 0);
         if (facade.HasLaneData(turn_id))
@@ -254,6 +259,7 @@ void annotatePath(const FacadeT &facade,
     // t: fwd_segment 3
     // -> (U, v), (v, w), (w, x)
     // note that (x, t) is _not_ included but needs to be added later.
+    bool is_target_left_hand_driving = facade.IsLeftHandDriving(target_node_id);
     for (std::size_t segment_idx = start_index; segment_idx != end_index;
          (start_index < end_index ? ++segment_idx : --segment_idx))
     {
@@ -262,6 +268,7 @@ void annotatePath(const FacadeT &facade,
         unpacked_path.push_back(
             PathData{id_vector[start_index < end_index ? segment_idx + 1 : segment_idx - 1],
                      facade.GetNameIndex(target_node_id),
+                     facade.IsSegregated(target_node_id),
                      weight_vector[segment_idx],
                      0,
                      duration_vector[segment_idx],
@@ -273,7 +280,8 @@ void annotatePath(const FacadeT &facade,
                      EMPTY_ENTRY_CLASS,
                      datasource_vector[segment_idx],
                      util::guidance::TurnBearing(0),
-                     util::guidance::TurnBearing(0)});
+                     util::guidance::TurnBearing(0),
+                     is_target_left_hand_driving});
     }
 
     if (unpacked_path.size() > 0)

include/extractor/edge_based_graph_factory.hpp

@@ -75,6 +75,7 @@ class EdgeBasedGraphFactory
                                    const std::unordered_set<NodeID> &traffic_lights,
                                    const std::vector<util::Coordinate> &coordinates,
                                    const util::NameTable &name_table,
+                                   const std::unordered_set<EdgeID> &segregated_edges,
                                    guidance::LaneDescriptionMap &lane_description_map);
 
     void Run(ScriptingEnvironment &scripting_environment,
@@ -157,6 +158,7 @@ class EdgeBasedGraphFactory
     const CompressedEdgeContainer &m_compressed_edge_container;
 
     const util::NameTable &name_table;
+    const std::unordered_set<EdgeID> &segregated_edges;
     guidance::LaneDescriptionMap &lane_description_map;
 
     // In the edge based graph, any traversable (non reversed) edge of the node-based graph forms a

include/extractor/edge_based_node.hpp

@@ -12,7 +12,8 @@ struct EdgeBasedNode
 {
     GeometryID geometry_id;
     ComponentID component_id;
-    AnnotationID annotation_id;
+    std::uint32_t annotation_id : 31;
+    std::uint32_t segregated : 1;
 };
 
 } // namespace extractor

include/extractor/extraction_turn.hpp

@@ -14,41 +14,33 @@ namespace extractor
 
 struct ExtractionTurn
 {
-    ExtractionTurn(const guidance::ConnectedRoad &turn,
+    ExtractionTurn(double angle,
+                   int number_of_roads,
+                   bool is_u_turn,
                    bool has_traffic_light,
                    bool source_restricted,
                    bool target_restricted,
-                   bool is_left_hand_driving)
-        : angle(180. - turn.angle), turn_type(turn.instruction.type),
-          direction_modifier(turn.instruction.direction_modifier),
+                   bool is_left_hand_driving,
+                   TravelMode source_mode,
+                   TravelMode target_mode)
+        : angle(180. - angle), number_of_roads(number_of_roads), is_u_turn(is_u_turn),
           has_traffic_light(has_traffic_light), source_restricted(source_restricted),
           target_restricted(target_restricted), is_left_hand_driving(is_left_hand_driving),
-          weight(0.), duration(0.)
-    {
-    }
-
-    ExtractionTurn(bool has_traffic_light,
-                   bool source_restricted,
-                   bool target_restricted,
-                   bool is_left_hand_driving)
-        : angle(0), turn_type(guidance::TurnType::NoTurn),
-          direction_modifier(guidance::DirectionModifier::Straight),
-          has_traffic_light(has_traffic_light), source_restricted(source_restricted),
-          target_restricted(target_restricted), is_left_hand_driving(is_left_hand_driving),
-          weight(0.), duration(0.)
+          weight(0.), duration(0.), source_mode(source_mode), target_mode(target_mode)
     {
     }
 
     const double angle;
-    const guidance::TurnType::Enum turn_type;
-    const guidance::DirectionModifier::Enum direction_modifier;
+    const int number_of_roads;
+    const bool is_u_turn;
     const bool has_traffic_light;
     const bool source_restricted;
     const bool target_restricted;
     const bool is_left_hand_driving;
-
     double weight;
     double duration;
+    TravelMode source_mode;
+    TravelMode target_mode;
 };
 }
 }

include/extractor/extraction_way.hpp

@@ -47,15 +47,16 @@ struct ExtractionWay
         duration = -1;
         weight = -1;
         name.clear();
-        ref.clear();
+        forward_ref.clear();
+        backward_ref.clear();
         pronunciation.clear();
         destinations.clear();
         exits.clear();
         turn_lanes_forward.clear();
         turn_lanes_backward.clear();
         road_classification = guidance::RoadClassification();
-        forward_travel_mode = TRAVEL_MODE_INACCESSIBLE;
-        backward_travel_mode = TRAVEL_MODE_INACCESSIBLE;
+        forward_travel_mode = extractor::TRAVEL_MODE_INACCESSIBLE;
+        backward_travel_mode = extractor::TRAVEL_MODE_INACCESSIBLE;
         roundabout = false;
         circular = false;
         is_startpoint = true;
@@ -67,8 +68,10 @@ struct ExtractionWay
     // wrappers to allow assigning nil (nullptr) to string values
     void SetName(const char *value) { detail::maybeSetString(name, value); }
     const char *GetName() const { return name.c_str(); }
-    void SetRef(const char *value) { detail::maybeSetString(ref, value); }
-    const char *GetRef() const { return ref.c_str(); }
+    void SetForwardRef(const char *value) { detail::maybeSetString(forward_ref, value); }
+    const char *GetForwardRef() const { return forward_ref.c_str(); }
+    void SetBackwardRef(const char *value) { detail::maybeSetString(backward_ref, value); }
+    const char *GetBackwardRef() const { return backward_ref.c_str(); }
     void SetDestinations(const char *value) { detail::maybeSetString(destinations, value); }
     const char *GetDestinations() const { return destinations.c_str(); }
     void SetExits(const char *value) { detail::maybeSetString(exits, value); }
@@ -101,15 +104,16 @@ struct ExtractionWay
     // weight of the whole way in both directions
     double weight;
     std::string name;
-    std::string ref;
+    std::string forward_ref;
+    std::string backward_ref;
     std::string pronunciation;
     std::string destinations;
     std::string exits;
     std::string turn_lanes_forward;
     std::string turn_lanes_backward;
     guidance::RoadClassification road_classification;
-    TravelMode forward_travel_mode : 4;
-    TravelMode backward_travel_mode : 4;
+    extractor::TravelMode forward_travel_mode : 4;
+    extractor::TravelMode backward_travel_mode : 4;
 
     // Boolean flags
     bool roundabout : 1;

include/extractor/extractor.hpp

@@ -47,6 +47,7 @@ namespace extractor
 
 class ScriptingEnvironment;
 struct ProfileProperties;
+class NodeBasedGraphFactory;
 
 class Extractor
 {
@@ -71,6 +72,7 @@ class Extractor
         const std::unordered_set<NodeID> &traffic_lights,
         const std::vector<TurnRestriction> &turn_restrictions,
         const std::vector<ConditionalTurnRestriction> &conditional_turn_restrictions,
+        const std::unordered_set<EdgeID> &segregated_edges,
         // might have to be updated to add new lane combinations
         guidance::LaneDescriptionMap &turn_lane_map,
         // for calculating turn penalties
@@ -100,6 +102,13 @@ class Extractor
     void WriteConditionalRestrictions(
         const std::string &path,
         std::vector<ConditionalTurnRestriction> &conditional_turn_restrictions);
+
+    // Find all "segregated" edges, e.g. edges that can be skipped in turn instructions.
+    // The main cases are:
+    // - middle edges between two osm ways in one logic road (U-turn)
+    // - staggered intersections (X-cross)
+    // - square/circle intersections
+    std::unordered_set<EdgeID> FindSegregatedNodes(NodeBasedGraphFactory &factory);
 };
 }
 }

include/extractor/extractor_callbacks.hpp

@@ -63,7 +63,8 @@ class ExtractorCallbacks
     // actually maps to name ids
     using MapKey = std::tuple<std::string, std::string, std::string, std::string, std::string>;
     using MapVal = unsigned;
-    std::unordered_map<MapKey, MapVal> string_map;
+    using StringMap = std::unordered_map<MapKey, MapVal>;
+    StringMap string_map;
     ExtractionContainers &external_memory;
     std::unordered_map<std::string, ClassData> &classes_map;
     guidance::LaneDescriptionMap &lane_description_map;

include/extractor/extractor_config.hpp

@@ -69,6 +69,7 @@ struct ExtractorConfig final : storage::IOConfig
                                       ".osrm.cnbg",
                                       ".osrm.cnbg_to_ebg"}),
                                  requested_num_threads(0),
+                                 parse_conditionals(false),
                                  use_locations_cache(true)
     {
     }

include/extractor/guidance/constants.hpp

@@ -26,7 +26,7 @@ const double constexpr DISTINCTION_RATIO = 2;
 const double constexpr MAX_ROUNDABOUT_RADIUS = 15;
 // Unnamed small roundabouts that look like intersections are announced as turns,
 // guard against data issues or such roundabout intersections getting too large.
-const double constexpr MAX_ROUNDABOUT_INTERSECTION_RADIUS = 25;
+const double constexpr MAX_ROUNDABOUT_INTERSECTION_RADIUS = 15;
 
 const double constexpr INCREASES_BY_FOURTY_PERCENT = 1.4;
 

include/extractor/guidance/mergable_road_detector.hpp

@@ -140,6 +140,22 @@ class MergableRoadDetector
     // The detector wants to prevent merges that are connected to `b-e`
     bool IsLinkRoad(const NodeID intersection_node, const MergableRoadData &road) const;
 
+    // The condition suppresses roads merging for intersections like
+    //             .  .
+    //           .      .
+    //       ----        ----
+    //           .      .
+    //             .  .
+    // but will allow roads merging for intersections like
+    //           -------
+    //          /       \ 
+    //      ----         ----
+    //          \       /
+    //           -------
+    bool IsCircularShape(const NodeID intersection_node,
+                         const MergableRoadData &lhs,
+                         const MergableRoadData &rhs) const;
+
     const util::NodeBasedDynamicGraph &node_based_graph;
     const EdgeBasedNodeDataContainer &node_data_container;
     const std::vector<util::Coordinate> &node_coordinates;
@@ -149,6 +165,9 @@ class MergableRoadDetector
     // name detection
     const util::NameTable &name_table;
     const SuffixTable &street_name_suffix_table;
+
+    // limit for detecting circles / parallel roads
+    const static double constexpr distance_to_extract = 150;
 };
 
 } // namespace guidance

include/extractor/guidance/node_based_graph_walker.hpp

@@ -123,7 +123,8 @@ struct SelectStraightmostRoadByNameAndOnlyChoice
 {
     SelectStraightmostRoadByNameAndOnlyChoice(const NameID desired_name_id,
                                               const double initial_bearing,
-                                              const bool requires_entry);
+                                              const bool requires_entry,
+                                              const bool stop_on_ambiguous_turns);
 
     /*
      * !! REQUIRED - Function for the use of TraverseRoad in the graph walker.
@@ -141,6 +142,7 @@ struct SelectStraightmostRoadByNameAndOnlyChoice
     const NameID desired_name_id;
     const double initial_bearing;
     const bool requires_entry;
+    const bool stop_on_ambiguous_turns;
 };
 
 // find the next intersection given a hop limit

include/extractor/guidance/statistics_handler.hpp

@@ -0,0 +1,108 @@
+#ifndef OSRM_EXTRACTOR_GUIDANCE_STATISTICS_HANDLER_HPP_
+#define OSRM_EXTRACTOR_GUIDANCE_STATISTICS_HANDLER_HPP_
+
+#include "extractor/guidance/intersection.hpp"
+#include "extractor/guidance/intersection_handler.hpp"
+#include "extractor/guidance/turn_instruction.hpp"
+
+#include "util/log.hpp"
+
+#include <algorithm>
+#include <iomanip>
+#include <iterator>
+#include <mutex>
+#include <unordered_map>
+
+#include <cstdint>
+
+namespace osrm
+{
+namespace extractor
+{
+namespace guidance
+{
+
+// Unconditionally runs over all intersections and gathers statistics for
+// instruction turn types and direction modifiers (see turn_instruction.hpp).
+class StatisticsHandler final : public IntersectionHandler
+{
+  public:
+    StatisticsHandler(const IntersectionGenerator &intersection_generator,
+                      const util::NodeBasedDynamicGraph &node_based_graph,
+                      const EdgeBasedNodeDataContainer &node_data_container,
+                      const std::vector<util::Coordinate> &coordinates,
+                      const util::NameTable &name_table,
+                      const SuffixTable &street_name_suffix_table)
+        : IntersectionHandler(node_based_graph,
+                              node_data_container,
+                              coordinates,
+                              name_table,
+                              street_name_suffix_table,
+                              intersection_generator)
+    {
+    }
+
+    ~StatisticsHandler() override final
+    {
+        const auto add_second = [](const auto acc, const auto &kv) { return acc + kv.second; };
+
+        const auto num_types =
+            std::accumulate(begin(type_hist), end(type_hist), std::uint64_t{0}, add_second);
+        const auto num_modifiers =
+            std::accumulate(begin(modifier_hist), end(modifier_hist), std::uint64_t{0}, add_second);
+
+        util::Log() << "Assigned " << num_types << " turn instruction types:";
+
+        for (const auto &kv : type_hist)
+            if (kv.second > 0)
+                util::Log() << std::fixed << std::setprecision(2)
+                            << internalInstructionTypeToString(kv.first) << ": " << kv.second
+                            << " (" << (kv.second / static_cast<float>(num_types) * 100.) << "%)";
+
+        util::Log() << "Assigned " << num_modifiers << " turn instruction modifiers:";
+
+        for (const auto &kv : modifier_hist)
+            if (kv.second > 0)
+                util::Log() << std::fixed << std::setprecision(2)
+                            << instructionModifierToString(kv.first) << ": " << kv.second << " ("
+                            << (kv.second / static_cast<float>(num_modifiers) * 100.) << "%)";
+    }
+
+    bool canProcess(const NodeID, const EdgeID, const Intersection &) const override final
+    {
+        return true;
+    }
+
+    Intersection
+    operator()(const NodeID, const EdgeID, Intersection intersection) const override final
+    {
+        // Lock histograms updates on a per-intersection basis.
+        std::lock_guard<std::mutex> defer{lock};
+
+        // Generate histograms for all roads; this way we will get duplicates
+        // which we would not get doing it after EBF generation. But we want
+        // numbers closer to the handlers and see how often handlers ran.
+        for (const auto &road : intersection)
+        {
+
+            const auto type = road.instruction.type;
+            const auto modifier = road.instruction.direction_modifier;
+
+            type_hist[type] += 1;
+            modifier_hist[modifier] += 1;
+        }
+
+        return intersection;
+    }
+
+  private:
+    mutable std::mutex lock;
+    mutable std::unordered_map<TurnType::Enum, std::uint64_t> type_hist;
+    mutable std::unordered_map<DirectionModifier::Enum, std::uint64_t> modifier_hist;
+};
+
+} // namespace guidance
+} // namespace extractor
+} // namespace osrm
+
+#endif // OSRM_EXTRACTOR_GUIDANCE_VALIDATION_HANDLER_HPP_

include/extractor/guidance/turn_analysis.hpp

@@ -10,6 +10,7 @@
 #include "extractor/guidance/motorway_handler.hpp"
 #include "extractor/guidance/roundabout_handler.hpp"
 #include "extractor/guidance/sliproad_handler.hpp"
+#include "extractor/guidance/statistics_handler.hpp"
 #include "extractor/guidance/suppress_mode_handler.hpp"
 #include "extractor/guidance/turn_classification.hpp"
 #include "extractor/guidance/turn_handler.hpp"
@@ -89,6 +90,7 @@ class TurnAnalysis
     const SliproadHandler sliproad_handler;
     const SuppressModeHandler suppress_mode_handler;
     const DrivewayHandler driveway_handler;
+    const StatisticsHandler statistics_handler;
 
     // Utility function, setting basic turn types. Prepares for normal turn handling.
     Intersection

include/extractor/guidance/turn_instruction.hpp

@@ -309,6 +309,86 @@ inline DirectionModifier::Enum bearingToDirectionModifier(const double bearing)
     return extractor::guidance::DirectionModifier::Left;
 }
 
+namespace detail
+{
+
+const constexpr char *modifier_names[] = {"uturn",
+                                          "sharp right",
+                                          "right",
+                                          "slight right",
+                                          "straight",
+                                          "slight left",
+                                          "left",
+                                          "sharp left"};
+
+/**
+ * Human readable values for TurnType enum values
+ */
+struct TurnTypeName
+{
+    // String value we return with our API
+    const char *external_name;
+    // Internal only string name for the turn type - useful for debugging
+    // and used by debug tiles for visualizing hidden turn types
+    const char *internal_name;
+};
+
+// Indexes in this list correspond to the Enum values of osrm::extractor::guidance::TurnType
+const constexpr TurnTypeName turn_type_names[] = {
+    {"invalid", "(not set)"},
+    {"new name", "new name"},
+    {"continue", "continue"},
+    {"turn", "turn"},
+    {"merge", "merge"},
+    {"on ramp", "on ramp"},
+    {"off ramp", "off ramp"},
+    {"fork", "fork"},
+    {"end of road", "end of road"},
+    {"notification", "notification"},
+    {"roundabout", "enter roundabout"},
+    {"exit roundabout", "enter and exit roundabout"},
+    {"rotary", "enter rotary"},
+    {"exit rotary", "enter and exit rotary"},
+    {"roundabout turn", "enter roundabout turn"},
+    {"roundabout turn", "enter and exit roundabout turn"},
+    {"use lane", "use lane"},
+    {"invalid", "(noturn)"},
+    {"invalid", "(suppressed)"},
+    {"roundabout", "roundabout"},
+    {"exit roundabout", "exit roundabout"},
+    {"rotary", "rotary"},
+    {"exit rotary", "exit rotary"},
+    {"roundabout turn", "roundabout turn"},
+    {"exit roundabout", "exit roundabout turn"},
+    {"invalid", "(stay on roundabout)"},
+    {"invalid", "(sliproad)"}};
+
+} // ns detail
+
+inline std::string instructionTypeToString(const TurnType::Enum type)
+{
+    static_assert(sizeof(detail::turn_type_names) / sizeof(detail::turn_type_names[0]) >=
+                      TurnType::MaxTurnType,
+                  "Some turn types have no string representation.");
+    return detail::turn_type_names[static_cast<std::size_t>(type)].external_name;
+}
+
+inline std::string internalInstructionTypeToString(const TurnType::Enum type)
+{
+    static_assert(sizeof(detail::turn_type_names) / sizeof(detail::turn_type_names[0]) >=
+                      TurnType::MaxTurnType,
+                  "Some turn types have no string representation.");
+    return detail::turn_type_names[static_cast<std::size_t>(type)].internal_name;
+}
+
+inline std::string instructionModifierToString(const DirectionModifier::Enum modifier)
+{
+    static_assert(sizeof(detail::modifier_names) / sizeof(detail::modifier_names[0]) >=
+                      DirectionModifier::MaxDirectionModifier,
+                  "Some direction modifiers have no string representation.");
+    return detail::modifier_names[static_cast<std::size_t>(modifier)];
+}
+
 } // namespace guidance
 } // namespace extractor
 } // namespace osrm

include/extractor/node_based_edge.hpp

@@ -71,6 +71,16 @@ struct NodeBasedEdgeAnnotation
             std::tie(name_id, classes, travel_mode, is_left_hand_driving) ==
             std::tie(other.name_id, other.classes, other.travel_mode, other.is_left_hand_driving));
     }
+
+    bool operator<(const NodeBasedEdgeAnnotation &other) const
+    {
+        return (std::tie(name_id, lane_description_id, classes, travel_mode, is_left_hand_driving) <
+                std::tie(other.name_id,
+                         other.lane_description_id,
+                         other.classes,
+                         other.travel_mode,
+                         other.is_left_hand_driving));
+    }
 };
 
 struct NodeBasedEdge

include/extractor/node_based_graph_factory.hpp

@@ -41,7 +41,7 @@ class NodeBasedGraphFactory
                           std::vector<TurnRestriction> &turn_restrictions,
                           std::vector<ConditionalTurnRestriction> &conditional_turn_restrictions);
 
-    auto const &GetGraph() const { return compressed_output_graph; }
+    auto const &GetGraph() { return compressed_output_graph; }
     auto const &GetBarriers() const { return barriers; }
     auto const &GetTrafficSignals() const { return traffic_signals; }
     auto &GetCompressedEdges() { return compressed_edge_container; }
@@ -75,7 +75,7 @@ class NodeBasedGraphFactory
     // unreferenced entries
     void CompressAnnotationData();
 
-    // After produce, this will contain a compresse version of the node-based graph
+    // After produce, this will contain a compressed version of the node-based graph
     util::NodeBasedDynamicGraph compressed_output_graph;
     // To store the meta-data for the graph that is purely annotative / not used for the navigation
     // itself. Since the edges of a node-based graph form the nodes of the edge based graphs, we

include/extractor/node_data_container.hpp

@@ -77,6 +77,8 @@ template <storage::Ownership Ownership> class EdgeBasedNodeDataContainerImpl
         return annotation_data[nodes[node_id].annotation_id].is_left_hand_driving;
     }
 
+    bool IsSegregated(const NodeID node_id) const { return nodes[node_id].segregated; }
+
     NameID GetNameID(const NodeID node_id) const
     {
         return annotation_data[nodes[node_id].annotation_id].name_id;
@@ -105,13 +107,8 @@ template <storage::Ownership Ownership> class EdgeBasedNodeDataContainerImpl
     // between a large set of nodes
     AnnotationID NumberOfAnnotations() const { return annotation_data.size(); }
 
-    EdgeBasedNode &GetNode(const NodeID node_id) { return nodes[node_id]; }
     EdgeBasedNode const &GetNode(const NodeID node_id) const { return nodes[node_id]; }
 
-    NodeBasedEdgeAnnotation &GetAnnotation(const AnnotationID annotation)
-    {
-        return annotation_data[annotation];
-    }
     NodeBasedEdgeAnnotation const &GetAnnotation(const AnnotationID annotation) const
     {
         return annotation_data[annotation];

include/extractor/original_edge_data.hpp

@@ -21,7 +21,7 @@ struct OriginalEdgeData
                               LaneDataID lane_data_id,
                               guidance::TurnInstruction turn_instruction,
                               EntryClassID entry_classid,
-                              TravelMode travel_mode,
+                              extractor::TravelMode travel_mode,
                               util::guidance::TurnBearing pre_turn_bearing,
                               util::guidance::TurnBearing post_turn_bearing)
         : via_geometry(via_geometry), name_id(name_id), entry_classid(entry_classid),
@@ -34,7 +34,8 @@ struct OriginalEdgeData
         : via_geometry{std::numeric_limits<unsigned>::max() >> 1, false},
           name_id(std::numeric_limits<unsigned>::max()), entry_classid(INVALID_ENTRY_CLASSID),
           lane_data_id(INVALID_LANE_DATAID), turn_instruction(guidance::TurnInstruction::INVALID()),
-          travel_mode(TRAVEL_MODE_INACCESSIBLE), pre_turn_bearing(0.0), post_turn_bearing(0.0)
+          travel_mode(extractor::TRAVEL_MODE_INACCESSIBLE), pre_turn_bearing(0.0),
+          post_turn_bearing(0.0)
     {
     }
 
@@ -43,7 +44,7 @@ struct OriginalEdgeData
     EntryClassID entry_classid;
     LaneDataID lane_data_id;
     guidance::TurnInstruction turn_instruction;
-    TravelMode travel_mode;
+    extractor::TravelMode travel_mode;
     util::guidance::TurnBearing pre_turn_bearing;
     util::guidance::TurnBearing post_turn_bearing;
 };

include/extractor/scripting_environment_lua.hpp

@@ -68,7 +68,7 @@ class Sol2ScriptingEnvironment final : public ScriptingEnvironment
 {
   public:
     static const constexpr int SUPPORTED_MIN_API_VERSION = 0;
-    static const constexpr int SUPPORTED_MAX_API_VERSION = 3;
+    static const constexpr int SUPPORTED_MAX_API_VERSION = 4;
 
     explicit Sol2ScriptingEnvironment(
         const std::string &file_name,

include/extractor/travel_mode.hpp

@@ -29,6 +29,7 @@ SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #define TRAVEL_MODE_HPP
 
 #include <cstdint>
+#include <string>
 
 namespace osrm
 {
@@ -38,8 +39,6 @@ namespace extractor
 // This is a char instead of a typed enum, so that we can
 // pack it into e.g. a "TravelMode mode : 4" packed bitfield
 using TravelMode = std::uint8_t;
-}
-}
 
 const constexpr osrm::extractor::TravelMode TRAVEL_MODE_INACCESSIBLE = 0;
 const constexpr osrm::extractor::TravelMode TRAVEL_MODE_DRIVING = 1;
@@ -55,4 +54,56 @@ const constexpr osrm::extractor::TravelMode TRAVEL_MODE_RIVER_UP = 10;
 const constexpr osrm::extractor::TravelMode TRAVEL_MODE_RIVER_DOWN = 11;
 const constexpr osrm::extractor::TravelMode TRAVEL_MODE_ROUTE = 12;
 
+// FIXME this actually needs to be configurable from the profiles
+inline std::string travelModeToString(const TravelMode mode)
+{
+    std::string token;
+    switch (mode)
+    {
+    case TRAVEL_MODE_INACCESSIBLE:
+        token = "inaccessible";
+        break;
+    case TRAVEL_MODE_DRIVING:
+        token = "driving";
+        break;
+    case TRAVEL_MODE_CYCLING:
+        token = "cycling";
+        break;
+    case TRAVEL_MODE_WALKING:
+        token = "walking";
+        break;
+    case TRAVEL_MODE_FERRY:
+        token = "ferry";
+        break;
+    case TRAVEL_MODE_TRAIN:
+        token = "train";
+        break;
+    case TRAVEL_MODE_PUSHING_BIKE:
+        token = "pushing bike";
+        break;
+    case TRAVEL_MODE_STEPS_UP:
+        token = "steps up";
+        break;
+    case TRAVEL_MODE_STEPS_DOWN:
+        token = "steps down";
+        break;
+    case TRAVEL_MODE_RIVER_UP:
+        token = "river upstream";
+        break;
+    case TRAVEL_MODE_RIVER_DOWN:
+        token = "river downstream";
+        break;
+    case TRAVEL_MODE_ROUTE:
+        token = "route";
+        break;
+    default:
+        token = "other";
+        break;
+    }
+    return token;
+}
+
+} // ns extractor
+} // ns osrm
+
 #endif /* TRAVEL_MODE_HPP */

include/updater/updater_config.hpp

@@ -44,22 +44,20 @@ namespace updater
 struct UpdaterConfig final : storage::IOConfig
 {
     UpdaterConfig()
-        : IOConfig(
-              {
-                  ".osrm.ebg",
-                  ".osrm.turn_weight_penalties",
-                  ".osrm.turn_duration_penalties",
-                  ".osrm.turn_penalties_index",
-                  ".osrm.nbg_nodes",
-                  ".osrm.ebg_nodes",
-                  ".osrm.edges",
-                  ".osrm.geometry",
-                  ".osrm.fileIndex",
-                  ".osrm.properties",
-                  ".osrm.restrictions",
-              },
-              {},
-              {".osrm.datasource_names"})
+        : IOConfig({".osrm.ebg",
+                    ".osrm.turn_weight_penalties",
+                    ".osrm.turn_duration_penalties",
+                    ".osrm.turn_penalties_index",
+                    ".osrm.nbg_nodes",
+                    ".osrm.ebg_nodes",
+                    ".osrm.edges",
+                    ".osrm.geometry",
+                    ".osrm.fileIndex",
+                    ".osrm.properties",
+                    ".osrm.restrictions"},
+                   {},
+                   {".osrm.datasource_names"}),
+          valid_now(0)
     {
     }
 

include/util/debug.hpp

@@ -22,6 +22,7 @@ namespace util
 
 namespace guidance
 {
+
 inline void print(const engine::guidance::RouteStep &step)
 {
     std::cout << static_cast<int>(step.maneuver.instruction.type) << " "

include/util/geojson_debug_logger.hpp

@@ -2,6 +2,7 @@
 #define OSRM_GEOJSON_DEBUG_LOGGER_HPP
 
 #include <fstream>
+#include <iomanip>
 #include <mutex>
 #include <string>
 
@@ -105,6 +106,8 @@ class GeojsonLogger
         std::lock_guard<std::mutex> guard(lock);
         ofs.open(logfile, std::ios::binary);
 
+        ofs << std::setprecision(12);
+
         // set up a feature collection
         ofs << "{\n\t\"type\": \"FeatureCollection\",\n\t\"features\": [\n\t";
         // remember whether we need to output a colon

package.json

@@ -1,6 +1,6 @@
 {
   "name": "osrm",
-  "version": "5.13.0-latest.1",
+  "version": "5.14.0-rc.1",
   "private": false,
   "description": "The Open Source Routing Machine is a high performance routing engine written in C++14 designed to run on OpenStreetMap data.",
   "dependencies": {

profiles/bicycle.lua

@@ -48,6 +48,7 @@ function setup()
       'toll_booth',
       'sally_port',
       'gate',
+      'lift_gate',
       'no',
       'block'
     },

profiles/car.lua

@@ -1,6 +1,6 @@
 -- Car profile
 
-api_version = 3
+api_version = 4
 
 Set = require('lib/set')
 Sequence = require('lib/sequence')
@@ -35,6 +35,7 @@ function setup()
     turn_penalty              = 7.5,
     speed_reduction           = 0.8,
     turn_bias                 = 1.075,
+    cardinal_directions       = false,
 
     -- a list of suffixes to suppress in name change instructions. The suffixes also include common substrings of each other
     suffix_list = {
@@ -161,6 +162,7 @@ function setup()
       'tertiary_link',
       'residential',
       'living_street',
+      'unclassified'
     },
 
     construction_whitelist = Set {
@@ -402,34 +404,8 @@ function process_way(profile, way, result, relations)
 
   WayHandlers.run(profile, way, result, data, handlers, relations)
 
-  local parsed_rel_list = {}
-  local rel_id_list = relations:get_relations(way)
-  for i, rel_id in ipairs(rel_id_list) do
-    local rel = relations:relation(rel_id)
-    parsed_rel_list[i] = Relations.parse_route_relation(rel, way, relations)
-  end
-
-  -- now process relations data
-  local matched_refs = nil;
-  if result.ref then
-    local match_res = Relations.match_to_ref(parsed_rel_list, result.ref)
- 
-    local ref = ''
-    for _, m in pairs(match_res) do
-      if ref ~= '' then
-        ref = ref .. '; '
-      end
-
-      if m.dir then
-        ref = ref .. m.ref .. ' $' .. m.dir
-      else
-        ref = ref .. m.ref
-      end
-    end
-
-    -- print(result.name, ref)
-
-    result.ref = ref
+  if profile.cardinal_directions then
+      Relations.process_way_refs(way, relations, result)
   end
 end
 
@@ -444,14 +420,14 @@ function process_turn(profile, turn)
       turn.duration = profile.properties.traffic_light_penalty
   end
 
-  if turn.turn_type ~= turn_type.no_turn then
+  if turn.number_of_roads > 2 or turn.source_mode ~= turn.target_mode or turn.is_u_turn then
     if turn.angle >= 0 then
       turn.duration = turn.duration + turn_penalty / (1 + math.exp( -((13 / turn_bias) *  turn.angle/180 - 6.5*turn_bias)))
     else
       turn.duration = turn.duration + turn_penalty / (1 + math.exp( -((13 * turn_bias) * -turn.angle/180 - 6.5/turn_bias)))
     end
 
-    if turn.direction_modifier == direction_modifier.u_turn then
+    if turn.is_u_turn then
       turn.duration = turn.duration + profile.properties.u_turn_penalty
     end
   end

profiles/foot.lua

@@ -33,6 +33,7 @@ function setup()
       'toll_booth',
       'sally_port',
       'gate',
+      'lift_gate',
       'no',
       'kerb',
       'block'

profiles/lib/relations.lua

@@ -41,7 +41,7 @@ function Relations.match_to_ref(relations, ref)
   local result_match = {}
   local order = {}
   for i, r in ipairs(references) do
-    result_match[r] = false
+    result_match[r] = { forward = nil, backward = nil }
     order[i] = r
   end
 
@@ -65,7 +65,7 @@ function Relations.match_to_ref(relations, ref)
     if direction then
       local best_score = -1
       local best_ref = nil
-      
+
       function find_best(scores)
         if scores then
           for k ,v in pairs(scores) do
@@ -79,9 +79,21 @@ function Relations.match_to_ref(relations, ref)
 
       find_best(name_scores)
       find_best(ref_scores)
-      
+
       if best_ref then
-        result_match[best_ref] = direction
+        local result_direction = result_match[best_ref]
+
+        local is_forward = rel["route_forward"]
+        if is_forward == nil then
+          result_direction.forward = direction
+          result_direction.backward = direction
+        elseif is_forward == true then
+          result_direction.forward = direction
+        else
+          result_direction.backward = direction
+        end
+
+        result_match[best_ref] = result_direction
       end
     end
 
@@ -182,7 +194,6 @@ function Relations.parse_route_relation(rel, way, relations)
     local super_dir = get_direction_from_superrel(rel, relations)
 
     -- check if there are data error
-    
     if (result_direction ~= nil) and (super_dir ~= nil) and (result_direction ~= super_dir) then
       print('ERROR: conflicting relation directions found for way ' .. way:id() .. 
             ' relation direction is ' .. result_direction .. ' superrelation direction is ' .. super_dir)
@@ -192,11 +203,59 @@ function Relations.parse_route_relation(rel, way, relations)
     end
 
     result['route_direction'] = result_direction
+
+    if role == 'forward' then
+      result['route_forward'] = true
+    elseif role == 'backward' then
+      result['route_forward'] = false
+    else
+      result['route_forward'] = nil
+    end
+
     add_extra_data(m)
   end
 
-
   return result
 end
 
-return Relations
+function Relations.process_way_refs(way, relations, result)
+  local parsed_rel_list = {}
+  local rel_id_list = relations:get_relations(way)
+  for i, rel_id in ipairs(rel_id_list) do
+    local rel = relations:relation(rel_id)
+    parsed_rel_list[i] = Relations.parse_route_relation(rel, way, relations)
+  end
+
+  -- now process relations data
+  local matched_refs = nil;
+  if result.ref then
+    local match_res = Relations.match_to_ref(parsed_rel_list, result.ref)
+
+    function gen_ref(is_forward)
+      local ref = ''
+      for _, m in pairs(match_res) do
+        if ref ~= '' then
+          ref = ref .. '; '
+        end
+
+        local dir = m.dir.forward
+        if is_forward == false then
+          dir = m.dir.backward
+        end
+
+        if dir then
+          ref = ref .. m.ref .. ' $' .. dir
+        else
+          ref = ref .. m.ref
+        end
+      end
+
+      return ref
+    end
+
+    result.forward_ref = gen_ref(true)
+    result.backward_ref = gen_ref(false)
+  end
+end
+
+return Relations

profiles/lib/way_handlers.lua

@@ -563,7 +563,7 @@ function WayHandlers.driving_side(profile, way, result, data)
    elseif driving_side == 'right' then
       result.is_left_hand_driving = false
    else
-      result.is_left_hand_driving = profile.left_hand_driving
+      result.is_left_hand_driving = profile.properties.left_hand_driving
    end
 end
 

src/engine/api/json_factory.cpp

@@ -1,5 +1,7 @@
-#include "engine/api/json_factory.hpp"
+#include "extractor/guidance/turn_instruction.hpp"
+#include "extractor/travel_mode.hpp"
 
+#include "engine/api/json_factory.hpp"
 #include "engine/hint.hpp"
 #include "engine/polyline_compressor.hpp"
 #include "util/integer_range.hpp"
@@ -32,59 +34,6 @@ namespace json
 namespace detail
 {
 
-const constexpr char *modifier_names[] = {"uturn",
-                                          "sharp right",
-                                          "right",
-                                          "slight right",
-                                          "straight",
-                                          "slight left",
-                                          "left",
-                                          "sharp left"};
-
-/**
- * Human readable values for TurnType enum values
- */
-struct TurnTypeName
-{
-    // String value we return with our API
-    const char *external_name;
-    // Internal only string name for the turn type - useful for debugging
-    // and used by debug tiles for visualizing hidden turn types
-    const char *internal_name;
-};
-
-// Indexes in this list correspond to the Enum values of osrm::extractor::guidance::TurnType
-const constexpr TurnTypeName turn_type_names[] = {
-    {"invalid", "(not set)"},
-    {"new name", "new name"},
-    {"continue", "continue"},
-    {"turn", "turn"},
-    {"merge", "merge"},
-    {"on ramp", "on ramp"},
-    {"off ramp", "off ramp"},
-    {"fork", "fork"},
-    {"end of road", "end of road"},
-    {"notification", "notification"},
-    {"roundabout", "enter roundabout"},
-    {"exit roundabout", "enter and exit roundabout"},
-    {"rotary", "enter rotary"},
-    {"exit rotary", "enter and exit rotary"},
-    {"roundabout turn", "enter roundabout turn"},
-    {"roundabout turn", "enter and exit roundabout turn"},
-    {"use lane", "use lane"},
-    {"invalid", "(noturn)"},
-    {"invalid", "(suppressed)"},
-    {"roundabout", "roundabout"},
-    {"exit roundabout", "exit roundabout"},
-    {"rotary", "rotary"},
-    {"exit rotary", "exit rotary"},
-    {"roundabout turn", "roundabout turn"},
-    {"exit roundabout", "exit roundabout turn"},
-    {"invalid", "(stay on roundabout)"},
-    {"invalid", "(sliproad)"}};
-
-const constexpr char *waypoint_type_names[] = {"invalid", "arrive", "depart"};
-
 // Check whether to include a modifier in the result of the API
 inline bool isValidModifier(const guidance::StepManeuver maneuver)
 {
@@ -97,20 +46,6 @@ inline bool hasValidLanes(const guidance::IntermediateIntersection &intersection
     return intersection.lanes.lanes_in_turn > 0;
 }
 
-std::string instructionTypeToString(const TurnType::Enum type)
-{
-    static_assert(sizeof(turn_type_names) / sizeof(turn_type_names[0]) >= TurnType::MaxTurnType,
-                  "Some turn types have no string representation.");
-    return turn_type_names[static_cast<std::size_t>(type)].external_name;
-}
-
-std::string internalInstructionTypeToString(const TurnType::Enum type)
-{
-    static_assert(sizeof(turn_type_names) / sizeof(turn_type_names[0]) >= TurnType::MaxTurnType,
-                  "Some turn types have no string representation.");
-    return turn_type_names[static_cast<std::size_t>(type)].internal_name;
-}
-
 util::json::Array lanesFromIntersection(const guidance::IntermediateIntersection &intersection)
 {
     BOOST_ASSERT(intersection.lanes.lanes_in_turn >= 1);
@@ -135,13 +70,7 @@ util::json::Array lanesFromIntersection(const guidance::IntermediateIntersection
     return result;
 }
 
-std::string instructionModifierToString(const DirectionModifier::Enum modifier)
-{
-    static_assert(sizeof(modifier_names) / sizeof(modifier_names[0]) >=
-                      DirectionModifier::MaxDirectionModifier,
-                  "Some direction modifiers has not string representation.");
-    return modifier_names[static_cast<std::size_t>(modifier)];
-}
+const constexpr char *waypoint_type_names[] = {"invalid", "arrive", "depart"};
 
 std::string waypointTypeToString(const guidance::WaypointType waypoint_type)
 {
@@ -159,55 +88,6 @@ util::json::Array coordinateToLonLat(const util::Coordinate coordinate)
     return array;
 }
 
-// FIXME this actually needs to be configurable from the profiles
-std::string modeToString(const extractor::TravelMode mode)
-{
-    std::string token;
-    switch (mode)
-    {
-    case TRAVEL_MODE_INACCESSIBLE:
-        token = "inaccessible";
-        break;
-    case TRAVEL_MODE_DRIVING:
-        token = "driving";
-        break;
-    case TRAVEL_MODE_CYCLING:
-        token = "cycling";
-        break;
-    case TRAVEL_MODE_WALKING:
-        token = "walking";
-        break;
-    case TRAVEL_MODE_FERRY:
-        token = "ferry";
-        break;
-    case TRAVEL_MODE_TRAIN:
-        token = "train";
-        break;
-    case TRAVEL_MODE_PUSHING_BIKE:
-        token = "pushing bike";
-        break;
-    case TRAVEL_MODE_STEPS_UP:
-        token = "steps up";
-        break;
-    case TRAVEL_MODE_STEPS_DOWN:
-        token = "steps down";
-        break;
-    case TRAVEL_MODE_RIVER_UP:
-        token = "river upstream";
-        break;
-    case TRAVEL_MODE_RIVER_DOWN:
-        token = "river downstream";
-        break;
-    case TRAVEL_MODE_ROUTE:
-        token = "route";
-        break;
-    default:
-        token = "other";
-        break;
-    }
-    return token;
-}
-
 } // namespace detail
 
 util::json::Object makeStepManeuver(const guidance::StepManeuver &maneuver)
@@ -217,7 +97,7 @@ util::json::Object makeStepManeuver(const guidance::StepManeuver &maneuver)
     std::string maneuver_type;
 
     if (maneuver.waypoint_type == guidance::WaypointType::None)
-        maneuver_type = detail::instructionTypeToString(maneuver.instruction.type);
+        maneuver_type = extractor::guidance::instructionTypeToString(maneuver.instruction.type);
     else
         maneuver_type = detail::waypointTypeToString(maneuver.waypoint_type);
 
@@ -227,8 +107,8 @@ util::json::Object makeStepManeuver(const guidance::StepManeuver &maneuver)
     step_maneuver.values["type"] = std::move(maneuver_type);
 
     if (detail::isValidModifier(maneuver))
-        step_maneuver.values["modifier"] =
-            detail::instructionModifierToString(maneuver.instruction.direction_modifier);
+        step_maneuver.values["modifier"] = extractor::guidance::instructionModifierToString(
+            maneuver.instruction.direction_modifier);
 
     step_maneuver.values["location"] = detail::coordinateToLonLat(maneuver.location);
     step_maneuver.values["bearing_before"] = detail::roundAndClampBearing(maneuver.bearing_before);
@@ -312,9 +192,10 @@ util::json::Object makeRouteStep(guidance::RouteStep step, util::json::Value geo
         }
     }
 
-    route_step.values["mode"] = detail::modeToString(std::move(step.mode));
+    route_step.values["mode"] = extractor::travelModeToString(std::move(step.mode));
     route_step.values["maneuver"] = makeStepManeuver(std::move(step.maneuver));
     route_step.values["geometry"] = std::move(geometry);
+    route_step.values["driving_side"] = step.is_left_hand_driving ? "left" : "right";
 
     util::json::Array intersections;
     intersections.values.reserve(step.intersections.size());

src/engine/guidance/collapse_turns.cpp

@@ -51,15 +51,15 @@ double findTotalTurnAngle(const RouteStep &entry_step, const RouteStep &exit_ste
         util::bearing::angleBetween(entry_step_entry_bearing, exit_step_exit_bearing);
 
     // both angles are in the same direction, the total turn gets increased
-    // 
+    //
     // a ---- b
-    //           \ 
+    //           \
     //              c
     //              |
     //              d
     //
     // Will be considered just like
-    // 
+    //
     // a -----b
     //        |
     //        c
@@ -89,11 +89,11 @@ double findTotalTurnAngle(const RouteStep &entry_step, const RouteStep &exit_ste
     else
     {
         // to prevent ignoring angles like
-        // 
+        //
         // a -- b
         //      |
         //      c -- d
-        // 
+        //
         // We don't combine both turn angles here but keep the very first turn angle.
         // We choose the first one, since we consider the first maneuver in a merge range the
         // important one
@@ -186,8 +186,9 @@ void AdjustToCombinedTurnStrategy::operator()(RouteStep &step_at_turn_location,
 {
     const auto angle = findTotalTurnAngle(step_at_turn_location, transfer_from_step);
 
-    // Forks point to left/right. By doing a combined angle, we would risk ending up with
-    // unreasonable fork instrucitons. The direction of a fork only depends on the forking location,
+    // Forks and merges point to left/right. By doing a combined angle, we would risk ending up with
+    // unreasonable fork instrucitons. The direction of a fork or a merge only depends on the
+    // location,
     // not further angles coming up
     //
     //          d
@@ -195,7 +196,8 @@ void AdjustToCombinedTurnStrategy::operator()(RouteStep &step_at_turn_location,
     // a - b
     //
     // could end up as `fork left` for `a-b-c`, instead of fork-right
-    const auto new_modifier = hasTurnType(step_at_turn_location, TurnType::Fork)
+    const auto new_modifier = hasTurnType(step_at_turn_location, TurnType::Fork) ||
+                                      hasTurnType(step_at_turn_location, TurnType::Merge)
                                   ? step_at_turn_location.maneuver.instruction.direction_modifier
                                   : getTurnDirection(angle);
 
@@ -439,13 +441,14 @@ RouteSteps collapseTurnInstructions(RouteSteps steps)
                               TransferSignageStrategy(),
                               NoModificationStrategy());
         }
+
         // if the current collapsing triggers, we can check for advanced scenarios that only are
         // possible after an inital collapse step (e.g. name change right after a u-turn)
-        // 
+        //
         // f - e - d
         //     |   |
         // a - b - c
-        // 
+        //
         // In this scenario, bc and de might belong to a different road than a-b and f-e (since
         // there are no fix conventions how to label them in segregated intersections). These steps
         // might only become apparent after some initial collapsing

src/engine/plugins/tile.cpp

@@ -1,5 +1,7 @@
-#include "engine/plugins/tile.hpp"
+#include "extractor/guidance/turn_instruction.hpp"
+
 #include "engine/plugins/plugin_base.hpp"
+#include "engine/plugins/tile.hpp"
 
 #include "util/coordinate_calculation.hpp"
 #include "util/string_view.hpp"
@@ -67,7 +69,7 @@ template <typename T> struct ValueIndexer
         return offset;
     }
 
-    std::size_t indexOf(const T &value) { return value_offsets[value]; };
+    std::size_t indexOf(const T &value) { return value_offsets[value]; }
 
     const std::vector<T> &values() { return used_values; }
 
@@ -182,25 +184,8 @@ inline void encodePoint(const FixedPoint &pt, protozero::packed_field_uint32 &ge
     geometry.add_element(protozero::encode_zigzag32(dy));
 }
 
-/**
- * Returnx the x1,y1,x2,y2 pixel coordinates of a line in a given
- * tile.
- *
- * @param start the first coordinate of the line
- * @param target the last coordinate of the line
- * @param tile_bbox the boundaries of the tile, in mercator coordinates
- * @return a FixedLine with coordinates relative to the tile_bbox.
- */
-FixedLine coordinatesToTileLine(const util::Coordinate start,
-                                const util::Coordinate target,
-                                const BBox &tile_bbox)
+linestring_t floatLineToTileLine(const FloatLine &geo_line, const BBox &tile_bbox)
 {
-    FloatLine geo_line;
-    geo_line.emplace_back(static_cast<double>(util::toFloating(start.lon)),
-                          static_cast<double>(util::toFloating(start.lat)));
-    geo_line.emplace_back(static_cast<double>(util::toFloating(target.lon)),
-                          static_cast<double>(util::toFloating(target.lat)));
-
     linestring_t unclipped_line;
 
     for (auto const &pt : geo_line)
@@ -219,8 +204,65 @@ FixedLine coordinatesToTileLine(const util::Coordinate start,
         boost::geometry::append(unclipped_line, point_t(px, py));
     }
 
-    multi_linestring_t clipped_line;
+    return unclipped_line;
+}
 
+std::vector<FixedLine> coordinatesToTileLine(const std::vector<util::Coordinate> &points,
+                                             const BBox &tile_bbox)
+{
+    FloatLine geo_line;
+    for (auto const &c : points)
+    {
+        geo_line.emplace_back(static_cast<double>(util::toFloating(c.lon)),
+                              static_cast<double>(util::toFloating(c.lat)));
+    }
+
+    linestring_t unclipped_line = floatLineToTileLine(geo_line, tile_bbox);
+
+    multi_linestring_t clipped_line;
+    boost::geometry::intersection(clip_box, unclipped_line, clipped_line);
+
+    std::vector<FixedLine> result;
+
+    // b::g::intersection might return a line with one point if the
+    // original line was very short and coords were dupes
+    for (auto const &cl : clipped_line)
+    {
+        if (cl.size() < 2)
+            continue;
+
+        FixedLine tile_line;
+        for (const auto &p : cl)
+            tile_line.emplace_back(p.get<0>(), p.get<1>());
+
+        result.emplace_back(std::move(tile_line));
+    }
+
+    return result;
+}
+
+/**
+ * Return the x1,y1,x2,y2 pixel coordinates of a line in a given
+ * tile.
+ *
+ * @param start the first coordinate of the line
+ * @param target the last coordinate of the line
+ * @param tile_bbox the boundaries of the tile, in mercator coordinates
+ * @return a FixedLine with coordinates relative to the tile_bbox.
+ */
+FixedLine coordinatesToTileLine(const util::Coordinate start,
+                                const util::Coordinate target,
+                                const BBox &tile_bbox)
+{
+    FloatLine geo_line;
+    geo_line.emplace_back(static_cast<double>(util::toFloating(start.lon)),
+                          static_cast<double>(util::toFloating(start.lat)));
+    geo_line.emplace_back(static_cast<double>(util::toFloating(target.lon)),
+                          static_cast<double>(util::toFloating(target.lat)));
+
+    linestring_t unclipped_line = floatLineToTileLine(geo_line, tile_bbox);
+
+    multi_linestring_t clipped_line;
     boost::geometry::intersection(clip_box, unclipped_line, clipped_line);
 
     FixedLine tile_line;
@@ -229,12 +271,9 @@ FixedLine coordinatesToTileLine(const util::Coordinate start,
     // original line was very short and coords were dupes
     if (!clipped_line.empty() && clipped_line[0].size() == 2)
     {
-        if (clipped_line[0].size() == 2)
+        for (const auto &p : clipped_line[0])
         {
-            for (const auto &p : clipped_line[0])
-            {
-                tile_line.emplace_back(p.get<0>(), p.get<1>());
-            }
+            tile_line.emplace_back(p.get<0>(), p.get<1>());
         }
     }
 
@@ -308,6 +347,20 @@ std::vector<std::size_t> getEdgeIndex(const std::vector<RTreeLeaf> &edges)
     return sorted_edge_indexes;
 }
 
+std::vector<NodeID> getSegregatedNodes(const DataFacadeBase &facade,
+                                       const std::vector<RTreeLeaf> &edges)
+{
+    std::vector<NodeID> result;
+
+    for (RTreeLeaf const &e : edges)
+    {
+        if (e.forward_segment_id.enabled && facade.IsSegregated(e.forward_segment_id.id))
+            result.push_back(e.forward_segment_id.id);
+    }
+
+    return result;
+}
+
 void encodeVectorTile(const DataFacadeBase &facade,
                       unsigned x,
                       unsigned y,
@@ -315,6 +368,7 @@ void encodeVectorTile(const DataFacadeBase &facade,
                       const std::vector<RTreeLeaf> &edges,
                       const std::vector<std::size_t> &sorted_edge_indexes,
                       const std::vector<routing_algorithms::TurnData> &all_turn_data,
+                      const std::vector<NodeID> &segregated_nodes,
                       std::string &pbf_buffer)
 {
 
@@ -712,10 +766,10 @@ void encodeVectorTile(const DataFacadeBase &facade,
                         point_float_index.add(t.weight / 10.0); // Note conversion to float here
 
                     auto turntype_idx =
-                        point_string_index.add(api::json::detail::internalInstructionTypeToString(
+                        point_string_index.add(extractor::guidance::internalInstructionTypeToString(
                             t.turn_instruction.type));
                     auto turnmodifier_idx =
-                        point_string_index.add(api::json::detail::instructionModifierToString(
+                        point_string_index.add(extractor::guidance::instructionModifierToString(
                             t.turn_instruction.direction_modifier));
                     return EncodedTurnData{t.coordinate,
                                            angle_idx,
@@ -865,6 +919,66 @@ void encodeVectorTile(const DataFacadeBase &facade,
                 }
             }
         }
+
+        {
+            protozero::pbf_writer line_layer_writer(tile_writer, util::vector_tile::LAYER_TAG);
+            line_layer_writer.add_uint32(util::vector_tile::VERSION_TAG, 2);             // version
+            line_layer_writer.add_string(util::vector_tile::NAME_TAG, "internal-nodes"); // name
+            line_layer_writer.add_uint32(util::vector_tile::EXTENT_TAG,
+                                         util::vector_tile::EXTENT); // extent
+
+            unsigned id = 0;
+            for (auto edgeNodeID : segregated_nodes)
+            {
+                auto const geomIndex = facade.GetGeometryIndex(edgeNodeID);
+                std::vector<NodeID> geometry;
+
+                if (geomIndex.forward)
+                    geometry = facade.GetUncompressedForwardGeometry(geomIndex.id);
+                else
+                    geometry = facade.GetUncompressedReverseGeometry(geomIndex.id);
+
+                std::vector<util::Coordinate> points;
+                for (auto const nodeID : geometry)
+                    points.push_back(facade.GetCoordinateOfNode(nodeID));
+
+                const auto encode_tile_line = [&line_layer_writer, &id](
+                    const FixedLine &tile_line, std::int32_t &start_x, std::int32_t &start_y) {
+
+                    protozero::pbf_writer feature_writer(line_layer_writer,
+                                                         util::vector_tile::FEATURE_TAG);
+
+                    feature_writer.add_enum(util::vector_tile::GEOMETRY_TAG,
+                                            util::vector_tile::GEOMETRY_TYPE_LINE); // geometry type
+
+                    feature_writer.add_uint64(util::vector_tile::ID_TAG, id++); // id
+                    {
+
+                        protozero::packed_field_uint32 field(
+                            feature_writer, util::vector_tile::FEATURE_ATTRIBUTES_TAG);
+                    }
+                    {
+
+                        // Encode the geometry for the feature
+                        protozero::packed_field_uint32 geometry(
+                            feature_writer, util::vector_tile::FEATURE_GEOMETRIES_TAG);
+                        encodeLinestring(tile_line, geometry, start_x, start_y);
+                    }
+                };
+
+                std::int32_t start_x = 0;
+                std::int32_t start_y = 0;
+
+                auto tile_lines = coordinatesToTileLine(points, tile_bbox);
+                if (!tile_lines.empty())
+                {
+                    for (auto const &tl : tile_lines)
+                    {
+                        encode_tile_line(tl, start_x, start_y);
+                    }
+                }
+            }
+        }
     }
     // protozero serializes data during object destructors, so once the scope closes,
     // our result buffer will have all the tile data encoded into it.
@@ -879,6 +993,7 @@ Status TilePlugin::HandleRequest(const RoutingAlgorithmsInterface &algorithms,
 
     const auto &facade = algorithms.GetFacade();
     auto edges = getEdges(facade, parameters.x, parameters.y, parameters.z);
+    auto segregated_nodes = getSegregatedNodes(facade, edges);
 
     auto edge_index = getEdgeIndex(edges);
 
@@ -891,8 +1006,15 @@ Status TilePlugin::HandleRequest(const RoutingAlgorithmsInterface &algorithms,
         turns = algorithms.GetTileTurns(edges, edge_index);
     }
 
-    encodeVectorTile(
-        facade, parameters.x, parameters.y, parameters.z, edges, edge_index, turns, pbf_buffer);
+    encodeVectorTile(facade,
+                     parameters.x,
+                     parameters.y,
+                     parameters.z,
+                     edges,
+                     edge_index,
+                     turns,
+                     segregated_nodes,
+                     pbf_buffer);
 
     return Status::Ok;
 }

src/engine/routing_algorithms/alternative_path_mld.cpp

@@ -233,6 +233,12 @@ RandIt filterPackedPathsByCellSharing(RandIt first, RandIt last, const Partition
         cells.insert(get_cell(std::get<1>(edge)));
 
     const auto over_sharing_limit = [&](const auto &packed) {
+
+        if (packed.path.empty())
+        { // don't remove routes with single-node (empty) path
+            return false;
+        }
+
         const auto not_seen = [&](const PackedEdge edge) {
             const auto source_cell = get_cell(std::get<0>(edge));
             const auto target_cell = get_cell(std::get<1>(edge));
@@ -310,7 +316,7 @@ RandIt filterPackedPathsByLocalOptimality(const WeightedViaNodePackedPath &path,
         // Check plateaux edges towards the target. Terminates at the source / target
         // at the latest, since parent(target)==target for the reverse heap and
         // parent(target) != target in the forward heap (and vice versa).
-        while (has_plateaux_at_node(node, fst, snd))
+        while (node != fst.GetData(node).parent && has_plateaux_at_node(node, fst, snd))
             node = fst.GetData(node).parent;
 
         return node;
@@ -320,7 +326,11 @@ RandIt filterPackedPathsByLocalOptimality(const WeightedViaNodePackedPath &path,
         BOOST_ASSERT(packed.via.node != path.via.node);
         BOOST_ASSERT(packed.via.weight != INVALID_EDGE_WEIGHT);
         BOOST_ASSERT(packed.via.node != SPECIAL_NODEID);
-        BOOST_ASSERT(!packed.path.empty());
+
+        if (packed.path.empty())
+        { // the edge case when packed.via.node is both source and target node
+            return false;
+        }
 
         const NodeID via = packed.via.node;
 
@@ -395,6 +405,12 @@ template <typename RandIt> RandIt filterUnpackedPathsBySharing(RandIt first, Ran
     edges.insert(begin(shortest_path.edges), begin(shortest_path.edges));
 
     const auto over_sharing_limit = [&](const auto &unpacked) {
+
+        if (unpacked.edges.empty())
+        { // don't remove routes with single-node (empty) path
+            return false;
+        }
+
         const auto not_seen = [&](const EdgeID edge) { return edges.count(edge) < 1; };
         const auto different = std::count_if(begin(unpacked.edges), end(unpacked.edges), not_seen);
 

src/extractor/edge_based_graph_factory.cpp

@@ -67,12 +67,13 @@ EdgeBasedGraphFactory::EdgeBasedGraphFactory(
     const std::unordered_set<NodeID> &traffic_lights,
     const std::vector<util::Coordinate> &coordinates,
     const util::NameTable &name_table,
+    const std::unordered_set<EdgeID> &segregated_edges,
     guidance::LaneDescriptionMap &lane_description_map)
     : m_edge_based_node_container(node_data_container), m_number_of_edge_based_nodes(0),
       m_coordinates(coordinates), m_node_based_graph(std::move(node_based_graph)),
       m_barrier_nodes(barrier_nodes), m_traffic_lights(traffic_lights),
       m_compressed_edge_container(compressed_edge_container), name_table(name_table),
-      lane_description_map(lane_description_map)
+      segregated_edges(segregated_edges), lane_description_map(lane_description_map)
 {
 }
 
@@ -164,13 +165,19 @@ NBGToEBG EdgeBasedGraphFactory::InsertEdgeBasedNode(const NodeID node_u, const N
         forward_data.geometry_id;
     m_edge_based_node_container.nodes[nbe_to_ebn_mapping[edge_id_1]].annotation_id =
         forward_data.annotation_data;
+    m_edge_based_node_container.nodes[nbe_to_ebn_mapping[edge_id_1]].segregated =
+        segregated_edges.count(edge_id_1) > 0;
+
     if (nbe_to_ebn_mapping[edge_id_2] != SPECIAL_EDGEID)
     {
         m_edge_based_node_container.nodes[nbe_to_ebn_mapping[edge_id_2]].geometry_id =
             reverse_data.geometry_id;
         m_edge_based_node_container.nodes[nbe_to_ebn_mapping[edge_id_2]].annotation_id =
             reverse_data.annotation_data;
+        m_edge_based_node_container.nodes[nbe_to_ebn_mapping[edge_id_2]].segregated =
+            segregated_edges.count(edge_id_2) > 0;
     }
+
     // Add segments of edge-based nodes
     for (const auto i : util::irange(std::size_t{0}, segment_count))
     {
@@ -365,6 +372,8 @@ EdgeBasedGraphFactory::GenerateEdgeExpandedNodes(const WayRestrictionMap &way_re
                 edge_data.geometry_id;
             m_edge_based_node_container.nodes[edge_based_node_id].annotation_id =
                 edge_data.annotation_data;
+            m_edge_based_node_container.nodes[edge_based_node_id].segregated =
+                segregated_edges.count(eid) > 0;
 
             m_edge_based_node_weights.push_back(m_edge_based_node_weights[eid]);
 
@@ -569,12 +578,16 @@ void EdgeBasedGraphFactory::GenerateEdgeExpandedEdges(
             // compute weight and duration penalties
             auto is_traffic_light = m_traffic_lights.count(node_at_center_of_intersection);
             ExtractionTurn extracted_turn(
-                turn,
+                turn.angle,
+                m_node_based_graph.GetOutDegree(node_at_center_of_intersection),
+                turn.instruction.direction_modifier == guidance::DirectionModifier::UTurn,
                 is_traffic_light,
                 edge_data1.flags.restricted,
                 edge_data2.flags.restricted,
                 m_edge_based_node_container.GetAnnotation(edge_data1.annotation_data)
-                    .is_left_hand_driving);
+                    .is_left_hand_driving,
+                m_edge_based_node_container.GetAnnotation(edge_data1.annotation_data).travel_mode,
+                m_edge_based_node_container.GetAnnotation(edge_data2.annotation_data).travel_mode);
             scripting_environment.ProcessTurn(extracted_turn);
 
             // turn penalties are limited to [-2^15, 2^15) which roughly

src/extractor/extractor.cpp

@@ -217,6 +217,15 @@ int Extractor::run(ScriptingEnvironment &scripting_environment)
                                                    turn_restrictions,
                                                    conditional_turn_restrictions);
 
+    util::Log() << "Find segregated edges in node-based graph ..." << std::flush;
+    TIMER_START(segregated);
+
+    auto segregated_edges = FindSegregatedNodes(node_based_graph_factory);
+
+    TIMER_STOP(segregated);
+    util::Log() << "ok, after " << TIMER_SEC(segregated) << "s";
+    util::Log() << "Segregated edges count = " << segregated_edges.size();
+
     util::Log() << "Writing nodes for nodes-based and edges-based graphs ...";
     auto const &coordinates = node_based_graph_factory.GetCoordinates();
     files::writeNodes(
@@ -268,6 +277,7 @@ int Extractor::run(ScriptingEnvironment &scripting_environment)
                                traffic_signals,
                                turn_restrictions,
                                conditional_turn_restrictions,
+                               segregated_edges,
                                turn_lane_map,
                                scripting_environment,
                                edge_based_nodes_container,
@@ -655,6 +665,7 @@ EdgeID Extractor::BuildEdgeExpandedGraph(
     const std::unordered_set<NodeID> &traffic_signals,
     const std::vector<TurnRestriction> &turn_restrictions,
     const std::vector<ConditionalTurnRestriction> &conditional_turn_restrictions,
+    const std::unordered_set<EdgeID> &segregated_edges,
     // might have to be updated to add new lane combinations
     guidance::LaneDescriptionMap &turn_lane_map,
     // for calculating turn penalties
@@ -676,6 +687,7 @@ EdgeID Extractor::BuildEdgeExpandedGraph(
                                                    traffic_signals,
                                                    coordinates,
                                                    name_table,
+                                                   segregated_edges,
                                                    turn_lane_map);
 
     const auto create_edge_based_edges = [&]() {
@@ -826,5 +838,232 @@ void Extractor::WriteCompressedNodeBasedGraph(const std::string &path,
     }
 }
 
+struct EdgeInfo
+{
+    NodeID node;
+
+    util::StringView name;
+
+    // 0 - outgoing (forward), 1 - incoming (reverse), 2 - both outgoing and incoming
+    int direction;
+
+    ClassData road_class;
+
+    guidance::RoadPriorityClass::Enum road_priority_class;
+
+    struct LessName
+    {
+        bool operator()(EdgeInfo const &e1, EdgeInfo const &e2) const { return e1.name < e2.name; }
+    };
+};
+
+bool IsSegregated(std::vector<EdgeInfo> v1,
+                  std::vector<EdgeInfo> v2,
+                  EdgeInfo const &current,
+                  double edgeLength)
+{
+    if (v1.size() < 2 || v2.size() < 2)
+        return false;
+
+    auto const sort_by_name_fn = [](std::vector<EdgeInfo> &v) {
+        std::sort(v.begin(), v.end(), EdgeInfo::LessName());
+    };
+
+    sort_by_name_fn(v1);
+    sort_by_name_fn(v2);
+
+    // Internal edge with the name should be connected with any other neibour edge with the same
+    // name, e.g. isolated edge with unique name is not segregated.
+    //              b - 'b' road continues here
+    //              |
+    //      - - a - |
+    //              b - segregated edge
+    //      - - a - |
+    if (!current.name.empty())
+    {
+        auto const findNameFn = [&current](std::vector<EdgeInfo> const &v) {
+            return std::binary_search(v.begin(), v.end(), current, EdgeInfo::LessName());
+        };
+
+        if (!findNameFn(v1) && !findNameFn(v2))
+            return false;
+    }
+
+    // set_intersection like routine to get equal result pairs
+    std::vector<std::pair<EdgeInfo const *, EdgeInfo const *>> commons;
+
+    auto i1 = v1.begin();
+    auto i2 = v2.begin();
+
+    while (i1 != v1.end() && i2 != v2.end())
+    {
+        if (i1->name == i2->name)
+        {
+            if (!i1->name.empty())
+                commons.push_back(std::make_pair(&(*i1), &(*i2)));
+
+            ++i1;
+            ++i2;
+        }
+        else if (i1->name < i2->name)
+            ++i1;
+        else
+            ++i2;
+    }
+
+    if (commons.size() < 2)
+        return false;
+
+    auto const check_equal_class = [](std::pair<EdgeInfo const *, EdgeInfo const *> const &e) {
+        // Or (e.first->road_class & e.second->road_class != 0)
+        return e.first->road_class == e.second->road_class;
+    };
+
+    size_t equal_class_count = 0;
+    for (auto const &e : commons)
+        if (check_equal_class(e))
+            ++equal_class_count;
+
+    if (equal_class_count < 2)
+        return false;
+
+    auto const get_length_threshold = [](EdgeInfo const *e) {
+        switch (e->road_priority_class)
+        {
+        case guidance::RoadPriorityClass::MOTORWAY:
+        case guidance::RoadPriorityClass::TRUNK:
+            return 30.0;
+        case guidance::RoadPriorityClass::PRIMARY:
+            return 20.0;
+        case guidance::RoadPriorityClass::SECONDARY:
+        case guidance::RoadPriorityClass::TERTIARY:
+            return 10.0;
+        default:
+            return 5.0;
+        }
+    };
+
+    double threshold = std::numeric_limits<double>::max();
+    for (auto const &e : commons)
+        threshold =
+            std::min(threshold, get_length_threshold(e.first) + get_length_threshold(e.second));
+
+    return edgeLength <= threshold;
+}
+
+std::unordered_set<EdgeID> Extractor::FindSegregatedNodes(NodeBasedGraphFactory &factory)
+{
+    util::NameTable names(config.GetPath(".osrm.names").string());
+
+    auto const &graph = factory.GetGraph();
+    auto const &annotation = factory.GetAnnotationData();
+
+    guidance::CoordinateExtractor coordExtractor(
+        graph, factory.GetCompressedEdges(), factory.GetCoordinates());
+
+    auto const get_edge_length = [&](NodeID from_node, EdgeID edgeID, NodeID to_node) {
+        auto const geom = coordExtractor.GetCoordinatesAlongRoad(from_node, edgeID, false, to_node);
+        double length = 0.0;
+        for (size_t i = 1; i < geom.size(); ++i)
+        {
+            length += osrm::util::coordinate_calculation::haversineDistance(geom[i - 1], geom[i]);
+        }
+        return length;
+    };
+
+    auto const get_edge_info = [&](NodeID node, auto const &edgeData) -> EdgeInfo {
+        /// @todo Make string normalization/lowercase/trim for comparison ...
+
+        auto const id = annotation[edgeData.annotation_data].name_id;
+        BOOST_ASSERT(id != INVALID_NAMEID);
+        auto const name = names.GetNameForID(id);
+
+        return {node,
+                name,
+                edgeData.reversed ? 1 : 0,
+                annotation[edgeData.annotation_data].classes,
+                edgeData.flags.road_classification.GetClass()};
+    };
+
+    auto const collect_edge_info_fn = [&](auto const &edges1, NodeID node2) {
+        std::vector<EdgeInfo> info;
+
+        for (auto const &e : edges1)
+        {
+            NodeID const target = graph.GetTarget(e);
+            if (target == node2)
+                continue;
+
+            info.push_back(get_edge_info(target, graph.GetEdgeData(e)));
+        }
+
+        if (info.empty())
+            return info;
+
+        std::sort(info.begin(), info.end(), [](EdgeInfo const &e1, EdgeInfo const &e2) {
+            return e1.node < e2.node;
+        });
+
+        // Merge equal infos with correct direction.
+        auto curr = info.begin();
+        auto next = curr;
+        while (++next != info.end())
+        {
+            if (curr->node == next->node)
+            {
+                BOOST_ASSERT(curr->name == next->name);
+                BOOST_ASSERT(curr->road_class == next->road_class);
+                BOOST_ASSERT(curr->direction != next->direction);
+                curr->direction = 2;
+            }
+            else
+                curr = next;
+        }
+
+        info.erase(
+            std::unique(info.begin(),
+                        info.end(),
+                        [](EdgeInfo const &e1, EdgeInfo const &e2) { return e1.node == e2.node; }),
+            info.end());
+
+        return info;
+    };
+
+    auto const isSegregatedFn = [&](auto const &edgeData,
+                                    auto const &edges1,
+                                    NodeID node1,
+                                    auto const &edges2,
+                                    NodeID node2,
+                                    double edgeLength) {
+        return IsSegregated(collect_edge_info_fn(edges1, node2),
+                            collect_edge_info_fn(edges2, node1),
+                            get_edge_info(node1, edgeData),
+                            edgeLength);
+    };
+
+    std::unordered_set<EdgeID> segregated_edges;
+
+    for (NodeID sourceID = 0; sourceID < graph.GetNumberOfNodes(); ++sourceID)
+    {
+        auto const sourceEdges = graph.GetAdjacentEdgeRange(sourceID);
+        for (EdgeID edgeID : sourceEdges)
+        {
+            auto const &edgeData = graph.GetEdgeData(edgeID);
+
+            if (edgeData.reversed)
+                continue;
+
+            NodeID const targetID = graph.GetTarget(edgeID);
+            auto const targetEdges = graph.GetAdjacentEdgeRange(targetID);
+
+            double const length = get_edge_length(sourceID, edgeID, targetID);
+            if (isSegregatedFn(edgeData, sourceEdges, sourceID, targetEdges, targetID, length))
+                segregated_edges.insert(edgeID);
+        }
+    }
+
+    return segregated_edges;
+}
+
 } // namespace extractor
 } // namespace osrm

src/extractor/extractor_callbacks.cpp

@@ -90,18 +90,19 @@ void ExtractorCallbacks::ProcessRestriction(const InputConditionalTurnRestrictio
  */
 void ExtractorCallbacks::ProcessWay(const osmium::Way &input_way, const ExtractionWay &parsed_way)
 {
-    if ((parsed_way.forward_travel_mode == TRAVEL_MODE_INACCESSIBLE ||
+    if ((parsed_way.forward_travel_mode == extractor::TRAVEL_MODE_INACCESSIBLE ||
          parsed_way.forward_speed <= 0) &&
-        (parsed_way.backward_travel_mode == TRAVEL_MODE_INACCESSIBLE ||
+        (parsed_way.backward_travel_mode == extractor::TRAVEL_MODE_INACCESSIBLE ||
          parsed_way.backward_speed <= 0) &&
         parsed_way.duration <= 0)
     { // Only true if the way is assigned a valid speed/duration
         return;
     }
 
-    if (!fallback_to_duration && (parsed_way.forward_travel_mode == TRAVEL_MODE_INACCESSIBLE ||
-                                  parsed_way.forward_rate <= 0) &&
-        (parsed_way.backward_travel_mode == TRAVEL_MODE_INACCESSIBLE ||
+    if (!fallback_to_duration &&
+        (parsed_way.forward_travel_mode == extractor::TRAVEL_MODE_INACCESSIBLE ||
+         parsed_way.forward_rate <= 0) &&
+        (parsed_way.backward_travel_mode == extractor::TRAVEL_MODE_INACCESSIBLE ||
          parsed_way.backward_rate <= 0) &&
         parsed_way.weight <= 0)
     { // Only true if the way is assigned a valid rate/weight and there is no duration fallback
@@ -145,7 +146,7 @@ void ExtractorCallbacks::ProcessWay(const osmium::Way &input_way, const Extracti
         }
     };
 
-    if (parsed_way.forward_travel_mode != TRAVEL_MODE_INACCESSIBLE)
+    if (parsed_way.forward_travel_mode != extractor::TRAVEL_MODE_INACCESSIBLE)
     {
         BOOST_ASSERT(parsed_way.duration > 0 || parsed_way.forward_speed > 0);
         forward_duration_data =
@@ -162,7 +163,7 @@ void ExtractorCallbacks::ProcessWay(const osmium::Way &input_way, const Extracti
                 toValueByEdgeOrByMeter(parsed_way.weight, parsed_way.forward_rate);
         }
     }
-    if (parsed_way.backward_travel_mode != TRAVEL_MODE_INACCESSIBLE)
+    if (parsed_way.backward_travel_mode != extractor::TRAVEL_MODE_INACCESSIBLE)
     {
         BOOST_ASSERT(parsed_way.duration > 0 || parsed_way.backward_speed > 0);
         backward_duration_data =
@@ -318,67 +319,74 @@ void ExtractorCallbacks::ProcessWay(const osmium::Way &input_way, const Extracti
     road_classification.SetNumberOfLanes(std::max(road_deduced_num_lanes, // len(turn:lanes)
                                                   road_classification.GetNumberOfLanes()));
 
-    // Get the unique identifier for the street name, destination, and ref
-    const auto name_iterator = string_map.find(MapKey(parsed_way.name,
-                                                      parsed_way.destinations,
-                                                      parsed_way.ref,
-                                                      parsed_way.pronunciation,
-                                                      parsed_way.exits));
-    NameID name_id = EMPTY_NAMEID;
-    if (string_map.end() == name_iterator)
-    {
-        // name_offsets has a sentinel element with the total name data size
-        // take the sentinels index as the name id of the new name data pack
-        // (name [name_id], destination [+1], pronunciation [+2], ref [+3], exits [+4])
-        name_id = external_memory.name_offsets.size() - 1;
+    const auto GetNameID = [this, &parsed_way](bool is_forward) -> NameID {
+        const std::string &ref = is_forward ? parsed_way.forward_ref : parsed_way.backward_ref;
+        // Get the unique identifier for the street name, destination, and ref
+        const auto name_iterator = string_map.find(MapKey(parsed_way.name,
+                                                          parsed_way.destinations,
+                                                          ref,
+                                                          parsed_way.pronunciation,
+                                                          parsed_way.exits));
 
-        std::copy(parsed_way.name.begin(),
-                  parsed_way.name.end(),
-                  std::back_inserter(external_memory.name_char_data));
-        external_memory.name_offsets.push_back(external_memory.name_char_data.size());
+        NameID name_id = EMPTY_NAMEID;
+        if (string_map.end() == name_iterator)
+        {
+            // name_offsets has a sentinel element with the total name data size
+            // take the sentinels index as the name id of the new name data pack
+            // (name [name_id], destination [+1], pronunciation [+2], ref [+3], exits [+4])
+            name_id = external_memory.name_offsets.size() - 1;
 
-        std::copy(parsed_way.destinations.begin(),
-                  parsed_way.destinations.end(),
-                  std::back_inserter(external_memory.name_char_data));
-        external_memory.name_offsets.push_back(external_memory.name_char_data.size());
+            std::copy(parsed_way.name.begin(),
+                      parsed_way.name.end(),
+                      std::back_inserter(external_memory.name_char_data));
+            external_memory.name_offsets.push_back(external_memory.name_char_data.size());
 
-        std::copy(parsed_way.pronunciation.begin(),
-                  parsed_way.pronunciation.end(),
-                  std::back_inserter(external_memory.name_char_data));
-        external_memory.name_offsets.push_back(external_memory.name_char_data.size());
+            std::copy(parsed_way.destinations.begin(),
+                      parsed_way.destinations.end(),
+                      std::back_inserter(external_memory.name_char_data));
+            external_memory.name_offsets.push_back(external_memory.name_char_data.size());
 
-        std::copy(parsed_way.ref.begin(),
-                  parsed_way.ref.end(),
-                  std::back_inserter(external_memory.name_char_data));
-        external_memory.name_offsets.push_back(external_memory.name_char_data.size());
+            std::copy(parsed_way.pronunciation.begin(),
+                      parsed_way.pronunciation.end(),
+                      std::back_inserter(external_memory.name_char_data));
+            external_memory.name_offsets.push_back(external_memory.name_char_data.size());
 
-        std::copy(parsed_way.exits.begin(),
-                  parsed_way.exits.end(),
-                  std::back_inserter(external_memory.name_char_data));
-        external_memory.name_offsets.push_back(external_memory.name_char_data.size());
+            std::copy(ref.begin(), ref.end(), std::back_inserter(external_memory.name_char_data));
+            external_memory.name_offsets.push_back(external_memory.name_char_data.size());
 
-        auto k = MapKey{parsed_way.name,
-                        parsed_way.destinations,
-                        parsed_way.ref,
-                        parsed_way.pronunciation,
-                        parsed_way.exits};
-        auto v = MapVal{name_id};
-        string_map.emplace(std::move(k), std::move(v));
-    }
-    else
-    {
-        name_id = name_iterator->second;
-    }
+            std::copy(parsed_way.exits.begin(),
+                      parsed_way.exits.end(),
+                      std::back_inserter(external_memory.name_char_data));
+            external_memory.name_offsets.push_back(external_memory.name_char_data.size());
+
+            auto k = MapKey{parsed_way.name,
+                            parsed_way.destinations,
+                            ref,
+                            parsed_way.pronunciation,
+                            parsed_way.exits};
+            auto v = MapVal{name_id};
+            string_map.emplace(std::move(k), std::move(v));
+        }
+        else
+        {
+            name_id = name_iterator->second;
+        }
+
+        return name_id;
+    };
+
+    const NameID forward_name_id = GetNameID(true);
+    const NameID backward_name_id = GetNameID(false);
 
     const bool in_forward_direction =
         (parsed_way.forward_speed > 0 || parsed_way.forward_rate > 0 || parsed_way.duration > 0 ||
          parsed_way.weight > 0) &&
-        (parsed_way.forward_travel_mode != TRAVEL_MODE_INACCESSIBLE);
+        (parsed_way.forward_travel_mode != extractor::TRAVEL_MODE_INACCESSIBLE);
 
     const bool in_backward_direction =
         (parsed_way.backward_speed > 0 || parsed_way.backward_rate > 0 || parsed_way.duration > 0 ||
          parsed_way.weight > 0) &&
-        (parsed_way.backward_travel_mode != TRAVEL_MODE_INACCESSIBLE);
+        (parsed_way.backward_travel_mode != extractor::TRAVEL_MODE_INACCESSIBLE);
 
     // split an edge into two edges if forwards/backwards behavior differ
     const bool split_edge =
@@ -386,12 +394,13 @@ void ExtractorCallbacks::ProcessWay(const osmium::Way &input_way, const Extracti
         (force_split_edges || (parsed_way.forward_rate != parsed_way.backward_rate) ||
          (parsed_way.forward_speed != parsed_way.backward_speed) ||
          (parsed_way.forward_travel_mode != parsed_way.backward_travel_mode) ||
-         (turn_lane_id_forward != turn_lane_id_backward) || (forward_classes != backward_classes));
+         (turn_lane_id_forward != turn_lane_id_backward) || (forward_classes != backward_classes) ||
+         (parsed_way.forward_ref != parsed_way.backward_ref));
 
     if (in_forward_direction)
     { // add (forward) segments or (forward,backward) for non-split edges in backward direction
         const auto annotation_data_id = external_memory.all_edges_annotation_data_list.size();
-        external_memory.all_edges_annotation_data_list.push_back({name_id,
+        external_memory.all_edges_annotation_data_list.push_back({forward_name_id,
                                                                   turn_lane_id_forward,
                                                                   forward_classes,
                                                                   parsed_way.forward_travel_mode,
@@ -424,7 +433,7 @@ void ExtractorCallbacks::ProcessWay(const osmium::Way &input_way, const Extracti
     if (in_backward_direction && (!in_forward_direction || split_edge))
     { // add (backward) segments for split edges or not in forward direction
         const auto annotation_data_id = external_memory.all_edges_annotation_data_list.size();
-        external_memory.all_edges_annotation_data_list.push_back({name_id,
+        external_memory.all_edges_annotation_data_list.push_back({backward_name_id,
                                                                   turn_lane_id_backward,
                                                                   backward_classes,
                                                                   parsed_way.backward_travel_mode,

src/extractor/graph_compressor.cpp

@@ -221,10 +221,15 @@ void GraphCompressor::Compress(
 
                     // generate an artifical turn for the turn penalty generation
                     ExtractionTurn extraction_turn(
+                        0,
+                        2,
+                        false,
                         true,
                         fwd_edge_data1.flags.restricted,
                         fwd_edge_data2.flags.restricted,
-                        node_data_container[fwd_edge_data1.annotation_data].is_left_hand_driving);
+                        node_data_container[fwd_edge_data1.annotation_data].is_left_hand_driving,
+                        TRAVEL_MODE_DRIVING,
+                        TRAVEL_MODE_DRIVING);
 
                     scripting_environment.ProcessTurn(extraction_turn);
                     node_duration_penalty = extraction_turn.duration * 10;

src/extractor/guidance/intersection_normalizer.cpp

@@ -370,6 +370,17 @@ IntersectionNormalizer::AdjustBearingsForMergeAtDestination(const NodeID node_at
                                                                                : offset;
         };
 
+        // only if straighmost angles get smaller, we consider it an improvement
+        auto const improves_straightmost = [&](auto const index, auto const offset) {
+            const auto itr = next_intersection_along_road.FindClosestBearing(
+                util::bearing::reverse(next_intersection_along_road[index].bearing));
+            const auto angle = util::bearing::angleBetween(
+                util::bearing::reverse(itr->bearing), next_intersection_along_road[index].bearing);
+
+            return util::angularDeviation(angle, STRAIGHT_ANGLE) >
+                   util::angularDeviation(angle + offset, STRAIGHT_ANGLE);
+        };
+
         // check if the u-turn edge at the next intersection could be merged to the left/right. If
         // this is the case and the road is not far away (see previous distance check), if
         // influences the perceived angle.
@@ -378,13 +389,17 @@ IntersectionNormalizer::AdjustBearingsForMergeAtDestination(const NodeID node_at
             const auto offset =
                 get_offset(next_intersection_along_road[0], next_intersection_along_road[1]);
 
-            const auto corrected_offset = get_corrected_offset(
-                offset,
-                road,
-                intersection[(intersection.size() + index - 1) % intersection.size()]);
-            // at the target intersection, we merge to the right, so we need to shift the current
-            // angle to the left
-            road.bearing = adjustAngle(road.bearing, corrected_offset);
+            if (improves_straightmost(0, -offset) && improves_straightmost(1, offset))
+            {
+                const auto corrected_offset = get_corrected_offset(
+                    offset,
+                    road,
+                    intersection[(intersection.size() + index - 1) % intersection.size()]);
+                // at the target intersection, we merge to the right, so we need to shift the
+                // current
+                // angle to the left
+                road.bearing = adjustAngle(road.bearing, corrected_offset);
+            }
         }
         else if (CanMerge(node_at_next_intersection,
                           next_intersection_along_road,
@@ -395,13 +410,18 @@ IntersectionNormalizer::AdjustBearingsForMergeAtDestination(const NodeID node_at
                 get_offset(next_intersection_along_road[0],
                            next_intersection_along_road[next_intersection_along_road.size() - 1]);
 
-            const auto corrected_offset =
-                get_corrected_offset(offset, road, intersection[(index + 1) % intersection.size()]);
-            // at the target intersection, we merge to the left, so we need to shift the current
-            // angle to the right
-            road.bearing = adjustAngle(road.bearing, -corrected_offset);
+            if (improves_straightmost(0, offset) &&
+                improves_straightmost(next_intersection_along_road.size() - 1, -offset))
+            {
+                const auto corrected_offset = get_corrected_offset(
+                    offset, road, intersection[(index + 1) % intersection.size()]);
+                // at the target intersection, we merge to the left, so we need to shift the current
+                // angle to the right
+                road.bearing = adjustAngle(road.bearing, -corrected_offset);
+            }
         }
     }
+
     return intersection;
 }
 

src/extractor/guidance/mergable_road_detector.cpp

@@ -109,7 +109,8 @@ bool MergableRoadDetector::CanMergeRoad(const NodeID intersection_node,
         return true;
 
     // finally check if two roads describe the direction
-    return HaveSameDirection(intersection_node, lhs, rhs);
+    return HaveSameDirection(intersection_node, lhs, rhs) &&
+           !IsCircularShape(intersection_node, lhs, rhs);
 }
 
 bool MergableRoadDetector::HaveIdenticalNames(const NameID lhs, const NameID rhs) const
@@ -184,7 +185,8 @@ bool MergableRoadDetector::IsNarrowTriangle(const NodeID intersection_node,
         node_data_container.GetAnnotation(node_based_graph.GetEdgeData(lhs.eid).annotation_data)
             .name_id,
         lhs.bearing,
-        /*requires entry=*/false);
+        /*requires entry=*/false,
+        false);
 
     NodeBasedGraphWalker graph_walker(
         node_based_graph, node_data_container, intersection_generator);
@@ -270,14 +272,10 @@ bool MergableRoadDetector::IsNarrowTriangle(const NodeID intersection_node,
            node_based_graph.GetTarget(right_accumulator.via_edge_id);
 }
 
-bool MergableRoadDetector::HaveSameDirection(const NodeID intersection_node,
-                                             const MergableRoadData &lhs,
-                                             const MergableRoadData &rhs) const
+bool MergableRoadDetector::IsCircularShape(const NodeID intersection_node,
+                                           const MergableRoadData &lhs,
+                                           const MergableRoadData &rhs) const
 {
-    if (angularDeviation(lhs.bearing, rhs.bearing) > MERGABLE_ANGLE_DIFFERENCE)
-        return false;
-
-    // Find a coordinate following a road that is far away
     NodeBasedGraphWalker graph_walker(
         node_based_graph, node_data_container, intersection_generator);
     const auto getCoordinatesAlongWay = [&](const EdgeID edge_id, const double max_length) {
@@ -286,7 +284,8 @@ bool MergableRoadDetector::HaveSameDirection(const NodeID intersection_node,
             node_data_container.GetAnnotation(node_based_graph.GetEdgeData(edge_id).annotation_data)
                 .name_id,
             lhs.bearing,
-            /*requires_entry=*/false);
+            /*requires_entry=*/false,
+            false);
         graph_walker.TraverseRoad(intersection_node, edge_id, accumulator, selector);
 
         return std::make_pair(accumulator.accumulated_length, accumulator.coordinates);
@@ -295,26 +294,12 @@ bool MergableRoadDetector::HaveSameDirection(const NodeID intersection_node,
     std::vector<util::Coordinate> coordinates_to_the_left, coordinates_to_the_right;
     double distance_traversed_to_the_left, distance_traversed_to_the_right;
 
-    // many roads only do short parallel segments. To get a good impression of how `parallel` two
-    // roads are, we look 100 meters down the road (wich can be quite short for very broad roads).
-    const double constexpr distance_to_extract = 150;
-
     std::tie(distance_traversed_to_the_left, coordinates_to_the_left) =
         getCoordinatesAlongWay(lhs.eid, distance_to_extract);
 
-    // tuned parameter, if we didn't get as far as 40 meters, we might barely look past an
-    // intersection.
-    const auto constexpr MINIMUM_LENGTH_FOR_PARALLEL_DETECTION = 40;
-    // quit early if the road is not very long
-    if (distance_traversed_to_the_left <= MINIMUM_LENGTH_FOR_PARALLEL_DETECTION)
-        return false;
-
     std::tie(distance_traversed_to_the_right, coordinates_to_the_right) =
         getCoordinatesAlongWay(rhs.eid, distance_to_extract);
 
-    if (distance_traversed_to_the_right <= MINIMUM_LENGTH_FOR_PARALLEL_DETECTION)
-        return false;
-
     const auto connect_again = (coordinates_to_the_left.back() == coordinates_to_the_right.back());
 
     // Tuning parameter to detect and don't merge roads close to circular shapes
@@ -344,9 +329,55 @@ bool MergableRoadDetector::HaveSameDirection(const NodeID intersection_node,
         // then don't merge roads if A/L² is greater than the lower bound
         BOOST_ASSERT(area_to_squared_perimeter_ratio <= 1. / (4 * M_PI));
         if (area_to_squared_perimeter_ratio >= CIRCULAR_POLYGON_ISOPERIMETRIC_LOWER_BOUND)
-            return false;
+            return true;
     }
 
+    return false;
+}
+
+bool MergableRoadDetector::HaveSameDirection(const NodeID intersection_node,
+                                             const MergableRoadData &lhs,
+                                             const MergableRoadData &rhs) const
+{
+    if (angularDeviation(lhs.bearing, rhs.bearing) > MERGABLE_ANGLE_DIFFERENCE)
+        return false;
+
+    // Find a coordinate following a road that is far away
+    NodeBasedGraphWalker graph_walker(
+        node_based_graph, node_data_container, intersection_generator);
+    const auto getCoordinatesAlongWay = [&](const EdgeID edge_id, const double max_length) {
+        LengthLimitedCoordinateAccumulator accumulator(coordinate_extractor, max_length);
+        SelectStraightmostRoadByNameAndOnlyChoice selector(
+            node_data_container.GetAnnotation(node_based_graph.GetEdgeData(edge_id).annotation_data)
+                .name_id,
+            lhs.bearing,
+            /*requires_entry=*/false,
+            true);
+        graph_walker.TraverseRoad(intersection_node, edge_id, accumulator, selector);
+
+        return std::make_pair(accumulator.accumulated_length, accumulator.coordinates);
+    };
+
+    std::vector<util::Coordinate> coordinates_to_the_left, coordinates_to_the_right;
+    double distance_traversed_to_the_left, distance_traversed_to_the_right;
+
+    std::tie(distance_traversed_to_the_left, coordinates_to_the_left) =
+        getCoordinatesAlongWay(lhs.eid, distance_to_extract);
+
+    // tuned parameter, if we didn't get as far as 40 meters, we might barely look past an
+    // intersection.
+    const auto constexpr MINIMUM_LENGTH_FOR_PARALLEL_DETECTION = 40;
+    // quit early if the road is not very long
+    if (distance_traversed_to_the_left <= MINIMUM_LENGTH_FOR_PARALLEL_DETECTION)
+        return false;
+
+    std::tie(distance_traversed_to_the_right, coordinates_to_the_right) =
+        getCoordinatesAlongWay(rhs.eid, distance_to_extract);
+
+    if (distance_traversed_to_the_right <= MINIMUM_LENGTH_FOR_PARALLEL_DETECTION)
+        return false;
+
+    const auto connect_again = (coordinates_to_the_left.back() == coordinates_to_the_right.back());
     // sampling to correctly weight longer segments in regression calculations
     const auto constexpr SAMPLE_INTERVAL = 5;
     coordinates_to_the_left = coordinate_extractor.SampleCoordinates(
@@ -395,6 +426,7 @@ bool MergableRoadDetector::HaveSameDirection(const NodeID intersection_node,
 
     const auto combined_road_width = 0.5 * (lane_count_lhs + lane_count_rhs) * ASSUMED_LANE_WIDTH;
     const auto constexpr MAXIMAL_ALLOWED_SEPARATION_WIDTH = 8;
+
     return distance_between_roads <= combined_road_width + MAXIMAL_ALLOWED_SEPARATION_WIDTH;
 }
 

src/extractor/guidance/node_based_graph_walker.cpp

@@ -103,9 +103,12 @@ operator()(const NodeID /*nid*/,
 
 // ---------------------------------------------------------------------------------
 SelectStraightmostRoadByNameAndOnlyChoice::SelectStraightmostRoadByNameAndOnlyChoice(
-    const NameID desired_name_id, const double initial_bearing, const bool requires_entry)
+    const NameID desired_name_id,
+    const double initial_bearing,
+    const bool requires_entry,
+    const bool stop_on_ambiguous_turns)
     : desired_name_id(desired_name_id), initial_bearing(initial_bearing),
-      requires_entry(requires_entry)
+      requires_entry(requires_entry), stop_on_ambiguous_turns(stop_on_ambiguous_turns)
 {
 }
 
@@ -155,24 +158,79 @@ operator()(const NodeID /*nid*/,
         std::min_element(std::next(std::begin(intersection)), std::end(intersection), comparator);
 
     const auto is_valid_choice = !requires_entry || min_element->entry_allowed;
-    const auto is_only_choice_with_same_name =
-        count_desired_name <= 2 && // <= in case we come from a bridge
-        node_data_container
-                .GetAnnotation(node_based_graph.GetEdgeData(min_element->eid).annotation_data)
-                .name_id == desired_name_id &&
-        angularDeviation(min_element->angle, STRAIGHT_ANGLE) < 100; // don't do crazy turns
+
+    if (!is_valid_choice)
+        return {};
+
+    // only road exiting or continuing in the same general direction
     const auto has_valid_angle =
         ((intersection.size() == 2 ||
           intersection.findClosestTurn(STRAIGHT_ANGLE) == min_element) &&
          angularDeviation(min_element->angle, STRAIGHT_ANGLE) < NARROW_TURN_ANGLE) &&
         angularDeviation(initial_bearing, min_element->bearing) < NARROW_TURN_ANGLE;
 
-    // in cases where we have two edges between roads, we can have quite severe angles due to the
-    // random split OSRM does to break up parallel edges at any coordinate
-    if (!is_valid_choice || !(is_only_choice_with_same_name || has_valid_angle))
-        return {};
-    else
+    if (has_valid_angle)
         return (*min_element).eid;
+
+    // in some cases, stronger turns are appropriate. We allow turns of just a bit over 90 degrees,
+    // if it's not a end of road situation. These angles come into play where roads split into dual
+    // carriage-ways.
+    //
+    //            e - - f
+    // a - - - - b
+    //            c - - d
+    //            |
+    //            g
+    //
+    // is technically
+    //
+    //
+    // a - - - - b (ce) - - (fg)
+    //              |
+    //              g
+    const auto is_only_choice_with_same_name =
+        count_desired_name <= 2 && //  <= in case we come from a bridge, otherwise we have a u-turn
+                                   //  and the outgoing edge
+        node_data_container
+                .GetAnnotation(node_based_graph.GetEdgeData(min_element->eid).annotation_data)
+                .name_id == desired_name_id &&
+        angularDeviation(min_element->angle, STRAIGHT_ANGLE) < 100; // don't do crazy turns
+
+    // do not allow major turns in the road, if other similar turns are present
+    // e.g.a turn at the end of the road:
+    //
+    // a - - a - - a - b - b
+    //             |
+    //       a - - a
+    //             |
+    //             c
+    //
+    // Such a turn can never be part of a merge
+    // We check if there is a similar turn to the other side. If such a turn exists, we consider the
+    // continuation of the road not possible
+    if (stop_on_ambiguous_turns &&
+        util::angularDeviation(STRAIGHT_ANGLE, min_element->angle) > GROUP_ANGLE)
+    {
+        auto opposite = intersection.findClosestTurn(util::bearing::reverse(min_element->angle));
+        auto opposite_deviation = util::angularDeviation(min_element->angle, opposite->angle);
+        // d - - - - c - - - -e
+        //           |
+        //           |
+        // a - - - - b
+        // from b-c onto min_element d with opposite side e
+        if (opposite_deviation > (180 - FUZZY_ANGLE_DIFFERENCE))
+            return {};
+
+        //           e
+        //           |
+        // a - - - - b - - - - -d
+        // doing a left turn while straight is a choice
+        auto const best = intersection.findClosestTurn(STRAIGHT_ANGLE);
+        if (util::angularDeviation(best->angle, STRAIGHT_ANGLE) < FUZZY_ANGLE_DIFFERENCE)
+            return {};
+    }
+
+    return is_only_choice_with_same_name ? boost::optional<EdgeID>(min_element->eid) : boost::none;
 }
 
 // ---------------------------------------------------------------------------------

src/extractor/guidance/suppress_mode_handler.cpp

@@ -34,7 +34,8 @@ bool SuppressModeHandler::canProcess(const NodeID,
     using std::end;
 
     // travel modes for which navigation should be suppressed
-    static const constexpr char suppressed[] = {TRAVEL_MODE_TRAIN, TRAVEL_MODE_FERRY};
+    static const constexpr char suppressed[] = {extractor::TRAVEL_MODE_TRAIN,
+                                                extractor::TRAVEL_MODE_FERRY};
 
     // If the approach way is not on the suppression blacklist, and not all the exit ways share that
     // mode, there are no ways to suppress by this criteria.

src/extractor/guidance/turn_analysis.cpp

@@ -78,7 +78,13 @@ TurnAnalysis::TurnAnalysis(const util::NodeBasedDynamicGraph &node_based_graph,
                        node_data_container,
                        coordinates,
                        name_table,
-                       street_name_suffix_table)
+                       street_name_suffix_table),
+      statistics_handler(intersection_generator,
+                         node_based_graph,
+                         node_data_container,
+                         coordinates,
+                         name_table,
+                         street_name_suffix_table)
 {
 }
 
@@ -175,6 +181,13 @@ Intersection TurnAnalysis::AssignTurnTypes(const NodeID node_prior_to_intersecti
                 road.instruction.type = TurnType::OffRamp;
         });
     }
+
+    // After we ran all handlers and determined instruction type
+    // and direction modifier gather statistics about our decisions.
+    if (statistics_handler.canProcess(node_prior_to_intersection, entering_via_edge, intersection))
+        intersection = statistics_handler(
+            node_prior_to_intersection, entering_via_edge, std::move(intersection));
+
     return intersection;
 }
 

src/extractor/node_based_graph_factory.cpp

@@ -4,9 +4,12 @@
 #include "util/graph_loader.hpp"
 
 #include "util/log.hpp"
+#include "util/timing_util.hpp"
 
 #include <boost/assert.hpp>
 
+#include <set>
+
 namespace osrm
 {
 namespace extractor
@@ -139,9 +142,38 @@ void NodeBasedGraphFactory::CompressGeometry()
 
 void NodeBasedGraphFactory::CompressAnnotationData()
 {
-    const constexpr AnnotationID INVALID_ANNOTATIONID = -1;
-    // remap all entries to find which are used
-    std::vector<AnnotationID> annotation_mapping(annotation_data.size(), INVALID_ANNOTATIONID);
+    TIMER_START(compress_annotation);
+    /** Main idea, that we need to remove duplicated and unreferenced data
+     * For that:
+     * 1. We create set, that contains indecies of unique data items. Just create
+     * comparator, that compare data from annotation_data vector by passed index.
+     * 2. Create cached id's unordered_map, where key - stored id in set,
+     * value - index of item in a set from begin. We need that map, because
+     * std::distance(set.begin(), it) is too slow O(N). So any words in that step we reorder
+     * annotation data to the order it stored in a set. Apply new id's to edge data.
+     * 3. Remove unused anootation_data items.
+     * 4. At final step just need to sort result annotation_data in the same order as set.
+     * That makes id's stored in edge data valid.
+     */
+    struct IndexComparator
+    {
+        IndexComparator(const std::vector<NodeBasedEdgeAnnotation> &annotation_data_)
+            : annotation_data(annotation_data_)
+        {
+        }
+
+        bool operator()(AnnotationID a, AnnotationID b) const
+        {
+            return annotation_data[a] < annotation_data[b];
+        }
+
+      private:
+        const std::vector<NodeBasedEdgeAnnotation> &annotation_data;
+    };
+
+    /** 1 */
+    IndexComparator comparator(annotation_data);
+    std::set<AnnotationID, IndexComparator> unique_annotations(comparator);
 
     // first we mark entries, by setting their mapping to 0
     for (const auto nbg_node_u : util::irange(0u, compressed_output_graph.GetNumberOfNodes()))
@@ -150,22 +182,17 @@ void NodeBasedGraphFactory::CompressAnnotationData()
         for (EdgeID nbg_edge_id : compressed_output_graph.GetAdjacentEdgeRange(nbg_node_u))
         {
             auto const &edge = compressed_output_graph.GetEdgeData(nbg_edge_id);
-            annotation_mapping[edge.annotation_data] = 0;
+            unique_annotations.insert(edge.annotation_data);
         }
     }
 
-    // now compute a prefix sum on all entries that are 0 to find the new mapping
-    AnnotationID prefix_sum = 0;
-    for (std::size_t i = 0; i < annotation_mapping.size(); ++i)
-    {
-        if (annotation_mapping[i] == 0)
-            annotation_mapping[i] = prefix_sum++;
-        else
-        {
-            // flag for removal
-            annotation_data[i].name_id = INVALID_NAMEID;
-        }
-    }
+    // make additional map, because std::distance of std::set seems is O(N)
+    // that very slow
+    /** 2 */
+    AnnotationID new_id = 0;
+    std::unordered_map<AnnotationID, AnnotationID> cached_ids;
+    for (auto id : unique_annotations)
+        cached_ids[id] = new_id++;
 
     // apply the mapping
     for (const auto nbg_node_u : util::irange(0u, compressed_output_graph.GetNumberOfNodes()))
@@ -174,11 +201,24 @@ void NodeBasedGraphFactory::CompressAnnotationData()
         for (EdgeID nbg_edge_id : compressed_output_graph.GetAdjacentEdgeRange(nbg_node_u))
         {
             auto &edge = compressed_output_graph.GetEdgeData(nbg_edge_id);
-            edge.annotation_data = annotation_mapping[edge.annotation_data];
-            BOOST_ASSERT(edge.annotation_data != INVALID_ANNOTATIONID);
+            auto const it = unique_annotations.find(edge.annotation_data);
+            BOOST_ASSERT(it != unique_annotations.end());
+            auto const it2 = cached_ids.find(*it);
+            BOOST_ASSERT(it2 != cached_ids.end());
+
+            edge.annotation_data = it2->second;
         }
     }
 
+    /** 3 */
+    // mark unused references for remove
+    for (AnnotationID id = 0; id < annotation_data.size(); ++id)
+    {
+        auto const it = unique_annotations.find(id);
+        if (it == unique_annotations.end() || *it != id)
+            annotation_data[id].name_id = INVALID_NAMEID;
+    }
+
     // remove unreferenced entries, shifting other entries to the front
     const auto new_end =
         std::remove_if(annotation_data.begin(), annotation_data.end(), [&](auto const &data) {
@@ -191,8 +231,15 @@ void NodeBasedGraphFactory::CompressAnnotationData()
     const auto old_size = annotation_data.size();
     // remove all remaining elements
     annotation_data.erase(new_end, annotation_data.end());
-    util::Log() << " graoh compression removed " << (old_size - annotation_data.size())
-                << " annotations of " << old_size;
+
+    // reorder data in the same order
+    /** 4 */
+    std::sort(annotation_data.begin(), annotation_data.end());
+
+    TIMER_STOP(compress_annotation);
+    util::Log() << " graph compression removed " << (old_size - annotation_data.size())
+                << " annotations of " << old_size << " in " << TIMER_SEC(compress_annotation)
+                << " seconds";
 }
 
 void NodeBasedGraphFactory::ReleaseOsmNodes()

src/extractor/scripting_environment_lua.cpp

@@ -111,29 +111,29 @@ void Sol2ScriptingEnvironment::InitContext(LuaScriptingContext &context)
 
     context.state.new_enum("mode",
                            "inaccessible",
-                           TRAVEL_MODE_INACCESSIBLE,
+                           extractor::TRAVEL_MODE_INACCESSIBLE,
                            "driving",
-                           TRAVEL_MODE_DRIVING,
+                           extractor::TRAVEL_MODE_DRIVING,
                            "cycling",
-                           TRAVEL_MODE_CYCLING,
+                           extractor::TRAVEL_MODE_CYCLING,
                            "walking",
-                           TRAVEL_MODE_WALKING,
+                           extractor::TRAVEL_MODE_WALKING,
                            "ferry",
-                           TRAVEL_MODE_FERRY,
+                           extractor::TRAVEL_MODE_FERRY,
                            "train",
-                           TRAVEL_MODE_TRAIN,
+                           extractor::TRAVEL_MODE_TRAIN,
                            "pushing_bike",
-                           TRAVEL_MODE_PUSHING_BIKE,
+                           extractor::TRAVEL_MODE_PUSHING_BIKE,
                            "steps_up",
-                           TRAVEL_MODE_STEPS_UP,
+                           extractor::TRAVEL_MODE_STEPS_UP,
                            "steps_down",
-                           TRAVEL_MODE_STEPS_DOWN,
+                           extractor::TRAVEL_MODE_STEPS_DOWN,
                            "river_up",
-                           TRAVEL_MODE_RIVER_UP,
+                           extractor::TRAVEL_MODE_RIVER_UP,
                            "river_down",
-                           TRAVEL_MODE_RIVER_DOWN,
+                           extractor::TRAVEL_MODE_RIVER_DOWN,
                            "route",
-                           TRAVEL_MODE_ROUTE);
+                           extractor::TRAVEL_MODE_ROUTE);
 
     context.state.new_enum("road_priority_class",
                            "motorway",
@@ -159,80 +159,6 @@ void Sol2ScriptingEnvironment::InitContext(LuaScriptingContext &context)
                            "connectivity",
                            extractor::guidance::RoadPriorityClass::CONNECTIVITY);
 
-    context.state.new_enum("turn_type",
-                           "invalid",
-                           extractor::guidance::TurnType::Invalid,
-                           "new_name",
-                           extractor::guidance::TurnType::NewName,
-                           "continue",
-                           extractor::guidance::TurnType::Continue,
-                           "turn",
-                           extractor::guidance::TurnType::Turn,
-                           "merge",
-                           extractor::guidance::TurnType::Merge,
-                           "on_ramp",
-                           extractor::guidance::TurnType::OnRamp,
-                           "off_ramp",
-                           extractor::guidance::TurnType::OffRamp,
-                           "fork",
-                           extractor::guidance::TurnType::Fork,
-                           "end_of_road",
-                           extractor::guidance::TurnType::EndOfRoad,
-                           "notification",
-                           extractor::guidance::TurnType::Notification,
-                           "enter_roundabout",
-                           extractor::guidance::TurnType::EnterRoundabout,
-                           "enter_and_exit_roundabout",
-                           extractor::guidance::TurnType::EnterAndExitRoundabout,
-                           "enter_rotary",
-                           extractor::guidance::TurnType::EnterRotary,
-                           "enter_and_exit_rotary",
-                           extractor::guidance::TurnType::EnterAndExitRotary,
-                           "enter_roundabout_intersection",
-                           extractor::guidance::TurnType::EnterRoundaboutIntersection,
-                           "enter_and_exit_roundabout_intersection",
-                           extractor::guidance::TurnType::EnterAndExitRoundaboutIntersection,
-                           "use_lane",
-                           extractor::guidance::TurnType::Suppressed,
-                           "no_turn",
-                           extractor::guidance::TurnType::NoTurn,
-                           "suppressed",
-                           extractor::guidance::TurnType::Suppressed,
-                           "enter_roundabout_at_exit",
-                           extractor::guidance::TurnType::EnterRoundaboutAtExit,
-                           "exit_roundabout",
-                           extractor::guidance::TurnType::ExitRoundabout,
-                           "enter_rotary_at_exit",
-                           extractor::guidance::TurnType::EnterRotaryAtExit,
-                           "exit_rotary",
-                           extractor::guidance::TurnType::ExitRotary,
-                           "enter_roundabout_intersection_at_exit",
-                           extractor::guidance::TurnType::EnterRoundaboutIntersectionAtExit,
-                           "exit_roundabout_intersection",
-                           extractor::guidance::TurnType::ExitRoundaboutIntersection,
-                           "stay_on_roundabout",
-                           extractor::guidance::TurnType::StayOnRoundabout,
-                           "sliproad",
-                           extractor::guidance::TurnType::Sliproad);
-
-    context.state.new_enum("direction_modifier",
-                           "u_turn",
-                           extractor::guidance::DirectionModifier::UTurn,
-                           "sharp_right",
-                           extractor::guidance::DirectionModifier::SharpRight,
-                           "right",
-                           extractor::guidance::DirectionModifier::Right,
-                           "slight_right",
-                           extractor::guidance::DirectionModifier::SlightRight,
-                           "straight",
-                           extractor::guidance::DirectionModifier::Straight,
-                           "slight_left",
-                           extractor::guidance::DirectionModifier::SlightLeft,
-                           "left",
-                           extractor::guidance::DirectionModifier::Left,
-                           "sharp_left",
-                           extractor::guidance::DirectionModifier::SharpLeft);
-
     context.state.new_enum("item_type",
                            "node",
                            osmium::item_type::node,
@@ -369,8 +295,16 @@ void Sol2ScriptingEnvironment::InitContext(LuaScriptingContext &context)
         &ExtractionWay::backward_rate,
         "name",
         sol::property(&ExtractionWay::GetName, &ExtractionWay::SetName),
-        "ref",
-        sol::property(&ExtractionWay::GetRef, &ExtractionWay::SetRef),
+        "ref", // backward compatibility
+        sol::property(&ExtractionWay::GetForwardRef,
+                      [](ExtractionWay &way, const char *ref) {
+                          way.SetForwardRef(ref);
+                          way.SetBackwardRef(ref);
+                      }),
+        "forward_ref",
+        sol::property(&ExtractionWay::GetForwardRef, &ExtractionWay::SetForwardRef),
+        "backward_ref",
+        sol::property(&ExtractionWay::GetBackwardRef, &ExtractionWay::SetBackwardRef),
         "pronunciation",
         sol::property(&ExtractionWay::GetPronunciation, &ExtractionWay::SetPronunciation),
         "destinations",
@@ -479,26 +413,6 @@ void Sol2ScriptingEnvironment::InitContext(LuaScriptingContext &context)
                                                   "duration",
                                                   &ExtractionSegment::duration);
 
-    context.state.new_usertype<ExtractionTurn>("ExtractionTurn",
-                                               "angle",
-                                               &ExtractionTurn::angle,
-                                               "turn_type",
-                                               &ExtractionTurn::turn_type,
-                                               "direction_modifier",
-                                               &ExtractionTurn::direction_modifier,
-                                               "has_traffic_light",
-                                               &ExtractionTurn::has_traffic_light,
-                                               "weight",
-                                               &ExtractionTurn::weight,
-                                               "duration",
-                                               &ExtractionTurn::duration,
-                                               "source_restricted",
-                                               &ExtractionTurn::source_restricted,
-                                               "target_restricted",
-                                               &ExtractionTurn::target_restricted,
-                                               "is_left_hand_driving",
-                                               &ExtractionTurn::is_left_hand_driving);
-
     // Keep in mind .location is available only if .pbf is preprocessed to set the location with the
     // ref using osmium command "osmium add-locations-to-ways"
     context.state.new_usertype<osmium::NodeRef>(
@@ -645,16 +559,156 @@ void Sol2ScriptingEnvironment::InitContext(LuaScriptingContext &context)
         }
     };
 
+    auto initialize_V3_extraction_turn = [&]() {
+
+        context.state.new_usertype<ExtractionTurn>(
+            "ExtractionTurn",
+            "angle",
+            &ExtractionTurn::angle,
+            "turn_type",
+            sol::property([](const ExtractionTurn &turn) {
+                if (turn.number_of_roads > 2 || turn.source_mode != turn.target_mode ||
+                    turn.is_u_turn)
+                    return guidance::TurnType::Turn;
+                else
+                    return guidance::TurnType::NoTurn;
+            }),
+            "direction_modifier",
+            sol::property([](const ExtractionTurn &turn) {
+                if (turn.is_u_turn)
+                    return guidance::DirectionModifier::UTurn;
+                else
+                    return guidance::DirectionModifier::Straight;
+            }),
+            "has_traffic_light",
+            &ExtractionTurn::has_traffic_light,
+            "weight",
+            &ExtractionTurn::weight,
+            "duration",
+            &ExtractionTurn::duration,
+            "source_restricted",
+            &ExtractionTurn::source_restricted,
+            "target_restricted",
+            &ExtractionTurn::target_restricted,
+            "is_left_hand_driving",
+            &ExtractionTurn::is_left_hand_driving);
+
+        context.state.new_enum("turn_type",
+                               "invalid",
+                               extractor::guidance::TurnType::Invalid,
+                               "new_name",
+                               extractor::guidance::TurnType::NewName,
+                               "continue",
+                               extractor::guidance::TurnType::Continue,
+                               "turn",
+                               extractor::guidance::TurnType::Turn,
+                               "merge",
+                               extractor::guidance::TurnType::Merge,
+                               "on_ramp",
+                               extractor::guidance::TurnType::OnRamp,
+                               "off_ramp",
+                               extractor::guidance::TurnType::OffRamp,
+                               "fork",
+                               extractor::guidance::TurnType::Fork,
+                               "end_of_road",
+                               extractor::guidance::TurnType::EndOfRoad,
+                               "notification",
+                               extractor::guidance::TurnType::Notification,
+                               "enter_roundabout",
+                               extractor::guidance::TurnType::EnterRoundabout,
+                               "enter_and_exit_roundabout",
+                               extractor::guidance::TurnType::EnterAndExitRoundabout,
+                               "enter_rotary",
+                               extractor::guidance::TurnType::EnterRotary,
+                               "enter_and_exit_rotary",
+                               extractor::guidance::TurnType::EnterAndExitRotary,
+                               "enter_roundabout_intersection",
+                               extractor::guidance::TurnType::EnterRoundaboutIntersection,
+                               "enter_and_exit_roundabout_intersection",
+                               extractor::guidance::TurnType::EnterAndExitRoundaboutIntersection,
+                               "use_lane",
+                               extractor::guidance::TurnType::Suppressed,
+                               "no_turn",
+                               extractor::guidance::TurnType::NoTurn,
+                               "suppressed",
+                               extractor::guidance::TurnType::Suppressed,
+                               "enter_roundabout_at_exit",
+                               extractor::guidance::TurnType::EnterRoundaboutAtExit,
+                               "exit_roundabout",
+                               extractor::guidance::TurnType::ExitRoundabout,
+                               "enter_rotary_at_exit",
+                               extractor::guidance::TurnType::EnterRotaryAtExit,
+                               "exit_rotary",
+                               extractor::guidance::TurnType::ExitRotary,
+                               "enter_roundabout_intersection_at_exit",
+                               extractor::guidance::TurnType::EnterRoundaboutIntersectionAtExit,
+                               "exit_roundabout_intersection",
+                               extractor::guidance::TurnType::ExitRoundaboutIntersection,
+                               "stay_on_roundabout",
+                               extractor::guidance::TurnType::StayOnRoundabout,
+                               "sliproad",
+                               extractor::guidance::TurnType::Sliproad);
+
+        context.state.new_enum("direction_modifier",
+                               "u_turn",
+                               extractor::guidance::DirectionModifier::UTurn,
+                               "sharp_right",
+                               extractor::guidance::DirectionModifier::SharpRight,
+                               "right",
+                               extractor::guidance::DirectionModifier::Right,
+                               "slight_right",
+                               extractor::guidance::DirectionModifier::SlightRight,
+                               "straight",
+                               extractor::guidance::DirectionModifier::Straight,
+                               "slight_left",
+                               extractor::guidance::DirectionModifier::SlightLeft,
+                               "left",
+                               extractor::guidance::DirectionModifier::Left,
+                               "sharp_left",
+                               extractor::guidance::DirectionModifier::SharpLeft);
+    };
+
     switch (context.api_version)
     {
+    case 4:
+    {
+        context.state.new_usertype<ExtractionTurn>("ExtractionTurn",
+                                                   "angle",
+                                                   &ExtractionTurn::angle,
+                                                   "number_of_roads",
+                                                   &ExtractionTurn::number_of_roads,
+                                                   "is_u_turn",
+                                                   &ExtractionTurn::is_u_turn,
+                                                   "has_traffic_light",
+                                                   &ExtractionTurn::has_traffic_light,
+                                                   "weight",
+                                                   &ExtractionTurn::weight,
+                                                   "duration",
+                                                   &ExtractionTurn::duration,
+                                                   "source_restricted",
+                                                   &ExtractionTurn::source_restricted,
+                                                   "target_restricted",
+                                                   &ExtractionTurn::target_restricted,
+                                                   "is_left_hand_driving",
+                                                   &ExtractionTurn::is_left_hand_driving,
+                                                   "source_mode",
+                                                   &ExtractionTurn::source_mode,
+                                                   "target_mode",
+                                                   &ExtractionTurn::target_mode);
+        initV2Context();
+        break;
+    }
     case 3:
     case 2:
     {
+        initialize_V3_extraction_turn();
         initV2Context();
         break;
     }
     case 1:
     {
+        initialize_V3_extraction_turn();
+
         // cache references to functions for faster execution
         context.turn_function = context.state["turn_function"];
         context.node_function = context.state["node_function"];
@@ -685,6 +739,8 @@ void Sol2ScriptingEnvironment::InitContext(LuaScriptingContext &context)
         break;
     }
     case 0:
+        initialize_V3_extraction_turn();
+
         // cache references to functions for faster execution
         context.turn_function = context.state["turn_function"];
         context.node_function = context.state["node_function"];
@@ -843,6 +899,7 @@ std::vector<std::vector<std::string>> Sol2ScriptingEnvironment::GetExcludableCla
     auto &context = GetSol2Context();
     switch (context.api_version)
     {
+    case 4:
     case 3:
     case 2:
         return Sol2ScriptingEnvironment::GetStringListsFromTable("excludable");
@@ -856,6 +913,7 @@ std::vector<std::string> Sol2ScriptingEnvironment::GetClassNames()
     auto &context = GetSol2Context();
     switch (context.api_version)
     {
+    case 4:
     case 3:
     case 2:
         return Sol2ScriptingEnvironment::GetStringListFromTable("classes");
@@ -869,6 +927,7 @@ std::vector<std::string> Sol2ScriptingEnvironment::GetNameSuffixList()
     auto &context = GetSol2Context();
     switch (context.api_version)
     {
+    case 4:
     case 3:
     case 2:
         return Sol2ScriptingEnvironment::GetStringListFromTable("suffix_list");
@@ -884,6 +943,7 @@ std::vector<std::string> Sol2ScriptingEnvironment::GetRestrictions()
     auto &context = GetSol2Context();
     switch (context.api_version)
     {
+    case 4:
     case 3:
     case 2:
         return Sol2ScriptingEnvironment::GetStringListFromTable("restrictions");
@@ -899,6 +959,7 @@ std::vector<std::string> Sol2ScriptingEnvironment::GetRelations()
     auto &context = GetSol2Context();
     switch (context.api_version)
     {
+    case 4:
     case 3:
         return Sol2ScriptingEnvironment::GetStringListFromTable("relation_types");
     default:
@@ -912,6 +973,7 @@ void Sol2ScriptingEnvironment::ProcessTurn(ExtractionTurn &turn)
 
     switch (context.api_version)
     {
+    case 4:
     case 3:
     case 2:
         if (context.has_turn_penalty_function)
@@ -943,14 +1005,14 @@ void Sol2ScriptingEnvironment::ProcessTurn(ExtractionTurn &turn)
     case 0:
         if (context.has_turn_penalty_function)
         {
-            if (turn.turn_type != guidance::TurnType::NoTurn)
+            if (turn.number_of_roads > 2)
             {
                 // Get turn duration and convert deci-seconds to seconds
                 turn.duration = static_cast<double>(context.turn_function(turn.angle)) / 10.;
                 BOOST_ASSERT(turn.weight == 0);
 
                 // add U-turn penalty
-                if (turn.direction_modifier == guidance::DirectionModifier::UTurn)
+                if (turn.is_u_turn)
                     turn.duration += context.properties.GetUturnPenalty();
             }
             else
@@ -979,6 +1041,7 @@ void Sol2ScriptingEnvironment::ProcessSegment(ExtractionSegment &segment)
     {
         switch (context.api_version)
         {
+        case 4:
         case 3:
         case 2:
             context.segment_function(context.profile_table, segment);
@@ -1003,6 +1066,7 @@ void LuaScriptingContext::ProcessNode(const osmium::Node &node,
 
     switch (api_version)
     {
+    case 4:
     case 3:
         node_function(profile_table, node, result, relations);
         break;
@@ -1024,6 +1088,7 @@ void LuaScriptingContext::ProcessWay(const osmium::Way &way,
 
     switch (api_version)
     {
+    case 4:
     case 3:
         way_function(profile_table, way, result, relations);
         break;

src/tools/contract.cpp

@@ -61,7 +61,7 @@ return_code parseArguments(int argc,
             ->composing(),
         "Lookup files containing from_, to_, via_nodes, and turn penalties to adjust turn weights")(
         "level-cache,o",
-        boost::program_options::value<bool>(&contractor_config.use_cached_priority)
+        boost::program_options::bool_switch(&contractor_config.use_cached_priority)
             ->default_value(false),
         "DEPRECATED: Will always be false. Use .level file to retain the contraction level for "
         "each "

src/tools/extract.cpp

@@ -58,7 +58,7 @@ return_code parseArguments(int argc,
             ->default_value(false),
         "Use metadata during osm parsing (This can affect the extraction performance).")(
         "parse-conditional-restrictions",
-        boost::program_options::value<bool>(&extractor_config.parse_conditionals)
+        boost::program_options::bool_switch(&extractor_config.parse_conditionals)
             ->implicit_value(true)
             ->default_value(false),
         "Save conditional restrictions found during extraction to disk for use "
@@ -67,10 +67,10 @@ return_code parseArguments(int argc,
                                   &extractor_config.location_dependent_data_paths)
                                   ->composing(),
                               "GeoJSON files with location-dependent data")(
-        "use-locations-cache",
-        boost::program_options::value<bool>(&extractor_config.use_locations_cache)
-            ->implicit_value(true)
-            ->default_value(extractor_config.use_locations_cache),
+        "disable-location-cache",
+        boost::program_options::bool_switch(&extractor_config.use_locations_cache)
+            ->implicit_value(false)
+            ->default_value(true),
         "Use internal nodes locations cache for location-dependent data lookups");
 
     bool dummy;
@@ -82,7 +82,7 @@ return_code parseArguments(int argc,
         boost::program_options::value<boost::filesystem::path>(&extractor_config.input_path),
         "Input file in .osm, .osm.bz2 or .osm.pbf format")(
         "generate-edge-lookup",
-        boost::program_options::value<bool>(&dummy)->implicit_value(true)->default_value(false),
+        boost::program_options::bool_switch(&dummy)->implicit_value(true)->default_value(false),
         "Not used anymore");
 
     // positional option

test/nodejs/constants.js

@@ -10,7 +10,7 @@ exports.three_test_coordinates = [[7.41337, 43.72956],
 
 exports.two_test_coordinates = exports.three_test_coordinates.slice(0, 2)
 
-exports.test_tile = {'at': [17059, 11948, 15], 'size': 167166};
+exports.test_tile = {'at': [17059, 11948, 15], 'size': 168606};
 
 
 // Test files generated by the routing engine; check test/data

unit_tests/engine/guidance_assembly.cpp

@@ -1,3 +1,5 @@
+#include "extractor/travel_mode.hpp"
+
 #include "engine/guidance/assemble_geometry.hpp"
 #include "engine/guidance/assemble_leg.hpp"
 #include "engine/guidance/assemble_overview.hpp"
@@ -12,6 +14,7 @@ BOOST_AUTO_TEST_SUITE(guidance_assembly)
 
 BOOST_AUTO_TEST_CASE(trim_short_segments)
 {
+    using namespace osrm::extractor;
     using namespace osrm::extractor::guidance;
     using namespace osrm::engine::guidance;
     using namespace osrm::engine;
@@ -36,6 +39,7 @@ BOOST_AUTO_TEST_CASE(trim_short_segments)
 
     // Check that duplicated coordinate in the end is removed
     std::vector<RouteStep> steps = {{324,
+                                     false,
                                      "Central Park West",
                                      "",
                                      "",
@@ -57,6 +61,7 @@ BOOST_AUTO_TEST_CASE(trim_short_segments)
                                      3,
                                      {intersection1}},
                                     {324,
+                                     false,
                                      "Central Park West",
                                      "",
                                      "",

unit_tests/engine/json_factory.cpp

@@ -1,4 +1,5 @@
 #include "engine/api/json_factory.hpp"
+#include "extractor/guidance/turn_instruction.hpp"
 
 #include <boost/test/test_case_template.hpp>
 #include <boost/test/unit_test.hpp>

unit_tests/engine/offline_facade.cpp

@@ -216,7 +216,7 @@ class ContiguousInternalMemoryDataFacade<routing_algorithms::offline::Algorithm>
 
     extractor::TravelMode GetTravelMode(const NodeID /*id*/) const override
     {
-        return TRAVEL_MODE_DRIVING;
+        return extractor::TRAVEL_MODE_DRIVING;
     }
 
     std::vector<RTreeLeaf> GetEdgesInBox(const util::Coordinate /*south_west*/,
@@ -366,6 +366,7 @@ class ContiguousInternalMemoryDataFacade<routing_algorithms::offline::Algorithm>
 
     util::guidance::EntryClass GetEntryClass(const EdgeID /*turn_id*/) const override { return {}; }
     bool IsLeftHandDriving(const NodeID /*id*/) const override { return false; }
+    bool IsSegregated(const NodeID /*id*/) const override { return false; }
 };
 
 } // datafacade

unit_tests/library/nearest.cpp

@@ -105,6 +105,11 @@ BOOST_AUTO_TEST_CASE(test_nearest_response_for_location_in_small_component)
         // Nearest service should snap to road network without considering components.
         const auto distance = waypoint_object.values.at("distance").get<json::Number>().value;
         BOOST_CHECK_LT(distance, 20);
+
+        const auto &nodes = waypoint_object.values.at("nodes").get<json::Array>().values;
+        BOOST_CHECK(nodes.size() == 2);
+        BOOST_CHECK(nodes[0].get<util::json::Number>().value != 0);
+        BOOST_CHECK(nodes[1].get<util::json::Number>().value != 0);
     }
 }
 

unit_tests/library/route.cpp

@@ -64,6 +64,7 @@ BOOST_AUTO_TEST_CASE(test_route_same_coordinates_fixture)
                                                   {"geometry", "yw_jGupkl@??"},
                                                   {"name", "Boulevard du Larvotto"},
                                                   {"mode", "driving"},
+                                                  {"driving_side", "right"},
                                                   {"maneuver",
                                                    json::Object{{
                                                        {"location", location},
@@ -84,6 +85,7 @@ BOOST_AUTO_TEST_CASE(test_route_same_coordinates_fixture)
                                                  {"geometry", "yw_jGupkl@"},
                                                  {"name", "Boulevard du Larvotto"},
                                                  {"mode", "driving"},
+                                                 {"driving_side", "right"},
                                                  {"maneuver",
                                                   json::Object{{{"location", location},
                                                                 {"bearing_before", 58},

unit_tests/mocks/mock_datafacade.hpp

@@ -199,7 +199,7 @@ class MockBaseDataFacade : public engine::datafacade::BaseDataFacade
 
     extractor::TravelMode GetTravelMode(const NodeID /* id */) const override
     {
-        return TRAVEL_MODE_INACCESSIBLE;
+        return extractor::TRAVEL_MODE_INACCESSIBLE;
     }
 
     extractor::ClassData GetClassData(const NodeID /*id*/) const override final { return 0; }
@@ -224,6 +224,7 @@ class MockBaseDataFacade : public engine::datafacade::BaseDataFacade
     unsigned GetWeightPrecision() const override final { return 1; }
     double GetWeightMultiplier() const override final { return 10.; }
     bool IsLeftHandDriving(const NodeID /*id*/) const override { return false; }
+    bool IsSegregated(const NodeID /*id*/) const override { return false; }
 
     util::guidance::TurnBearing PreTurnBearing(const EdgeID /*eid*/) const override final
     {