[skip ci] Update changelog

clarify "new name" instruction

.travis.yml

@@ -49,16 +49,13 @@ matrix:
           packages: ['g++-4.8', 'libbz2-dev', 'libstxxl-dev', 'libstxxl1', 'libxml2-dev', 'libzip-dev', 'lua5.1', 'liblua5.1-0-dev', 'libtbb-dev', 'libgdal-dev', 'libluabind-dev', 'libboost-all-dev', 'ccache']
       env: CCOMPILER='gcc-4.8' CXXCOMPILER='g++-4.8' BUILD_TYPE='Debug'
 
-  # LLVM APT servers switched off, commenting Clang builds out as they will always fail now
-  # http://lists.llvm.org/pipermail/llvm-foundation/2016-June/000025.html
-  #
-  #    - os: linux
-  #      compiler: "clang-3.8-debug"
-  #      addons: &clang38
-  #        apt:
-  #          sources: ['llvm-toolchain-precise-3.8', 'ubuntu-toolchain-r-test']
-  #          packages: ['clang-3.8', 'libbz2-dev', 'libstxxl-dev', 'libstxxl1', 'libxml2-dev', 'libzip-dev', 'lua5.1', 'liblua5.1-0-dev', 'libtbb-dev', 'libgdal-dev', 'libluabind-dev', 'libboost-all-dev', 'ccache']
-  #      env: CCOMPILER='clang-3.8' CXXCOMPILER='clang++-3.8' BUILD_TYPE='Debug' RUN_CLANG_FORMAT=ON
+    - os: linux
+      compiler: "clang-3.8-debug"
+      addons: &clang38
+        apt:
+          sources: ['ubuntu-toolchain-r-test']
+          packages: ['libstdc++-5-dev', 'libbz2-dev', 'libstxxl-dev', 'libstxxl1', 'libxml2-dev', 'libzip-dev', 'lua5.1', 'liblua5.1-0-dev', 'libtbb-dev', 'libgdal-dev', 'libluabind-dev', 'libboost-all-dev', 'ccache']
+      env: CLANG_VERSION='3.8.0' BUILD_TYPE='Debug' RUN_CLANG_FORMAT=ON
 
     - os: osx
       osx_image: xcode7.3
@@ -124,6 +121,13 @@ before_install:
   - export PATH=${DEPS_DIR}/bin:${PATH} && mkdir -p ${DEPS_DIR}
   - CMAKE_URL="https://mason-binaries.s3.amazonaws.com/${TRAVIS_OS_NAME}-x86_64/cmake/3.5.2.tar.gz"
   - travis_retry wget --quiet -O - ${CMAKE_URL} | tar --strip-components=1 -xz -C ${DEPS_DIR}
+  - |
+    if [[ ${CLANG_VERSION:-false} != false ]]; then
+      export CCOMPILER='clang'
+      export CXXCOMPILER='clang++'
+      CLANG_URL="https://mason-binaries.s3.amazonaws.com/${TRAVIS_OS_NAME}-x86_64/clang/${CLANG_VERSION}.tar.gz"
+      travis_retry wget --quiet -O - ${CLANG_URL} | tar --strip-components=1 -xz -C ${DEPS_DIR}
+    fi
   - |
     if [[ "${TRAVIS_OS_NAME}" == "osx" ]]; then
       # implicit deps, but seem to be installed by default with recent images: libxml2 GDAL boost
@@ -152,7 +156,7 @@ install:
     fi
   - popd
   - mkdir example/build && pushd example/build
-  - cmake ..
+  - cmake .. -DCMAKE_BUILD_TYPE=${BUILD_TYPE}
   - make
   - popd
 

CHANGELOG.md

@@ -1,20 +1,64 @@
+# 5.2.0
+  Changes form 5.2.0 RC2
+   - Bugfixes:
+     - Fixed crash when loading shared memory caused by invalid OSM IDs segment size.
+     - Various small instructions handling fixes
+
+   Changes from 5.1.0
+   - API:
+     - new parameter `annotations` for `route`, `trip` and `match` requests.  Returns additional data about each
+       coordinate along the selected/matched route line per `RouteLeg`:
+         - duration of each segment
+         - distance of each segment
+         - OSM node ids of all segment endpoints
+     - Introducing Intersections for Route Steps. This changes the API format in multiple ways.
+         - `bearing_before`/`bearing_after` of `StepManeuver` are now deprecated and will be removed in the next major release
+         - `location` of `StepManeuvers` is now deprecated and will be removed in the next major release
+         - every `RouteStep` now has property `intersections` containing a list of `Intersection` objects.
+     - Support for destination signs. New member `destinations` in `RouteStep`, based on `destination` and `destination:ref`
+     - Support for name pronunciations. New member `pronunciation` in `RouteStep`, based on `name:pronunciation`
+
+   - Profile changes:
+     - duration parser now accepts P[n]DT[n]H[n]M[n]S, P[n]W, PTHHMMSS and PTHH:MM:SS ISO8601 formats.
+     - `result.destinations` allows you to set a way's destinations
+     - `result.pronunciation` allows you to set way name pronunciations
+     - `highway=motorway_link` no longer implies `oneway` as per the OSM Wiki
+
+   - Infrastructure:
+     - BREAKING: Changed the on-disk encoding of the StaticRTree to reduce ramIndex file size. This breaks the **data format**
+     - BREAKING: Intersection Classification adds a new file to the mix (osrm.icd). This breaks the fileformat for older versions.
+     - Better support for osrm-routed binary upgrade on the fly [UNIX specific]:
+       - Open sockets with SO_REUSEPORT to allow multiple osrm-routed processes serving requests from the same port.
+       - Add SIGNAL_PARENT_WHEN_READY environment variable to enable osrm-routed signal its parent with USR1 when it's running and waiting for requests.
+     - Disable http access logging via DISABLE_ACCESS_LOGGING environment variable.
+
+   - Guidance:
+     - BREAKING: modifies the file format with new internal identifiers
+     - improved detection of turning streets, not reporting new-name in wrong situations
+     - improved handling of sliproads (emit turns instead of 'take the ramp')
+     - improved collapsing of instructions. Some 'new name' instructions will be suppressed if they are without alternative and the segment is short
+
+   - Bugfixes
+     - fixed broken summaries for very short routes
+
 # 5.2.0 RC2
    Changes from 5.2.0 RC1
 
    - Guidance:
      - improved handling of sliproads (emit turns instead of 'take the ramp')
+     - improved collapsing of instructions. Some 'new name' instructions will be suppressed if they are without alternative and the segment is short
      - BREAKING: modifies the file format with new internal identifiers
 
    - API:
      - paramater `annotate` was renamed to `annotations`.
      - `annotation` as accidentally placed in `Route` instead of `RouteLeg`
      - Support for destination signs. New member `destinations` in `RouteStep`, based on `destination` and `destination:ref`
-     - Support for name pronounciations. New member `pronounciation` in `RouteStep`, based on `name:pronounciation`
+     - Support for name pronunciations. New member `pronunciation` in `RouteStep`, based on `name:pronunciation`
      - Add `nodes` property to `annotation` in `RouteLeg` containing the ids of nodes covered by the route
 
    - Profile changes:
      - `result.destinations` allows you to set a way's destinations
-     - `result.pronounciation` allows you to set way name pronounciations
+     - `result.pronunciation` allows you to set way name pronunciations
      - `highway=motorway_link` no longer implies `oneway` as per the OSM Wiki
 
    - Infrastructure

CMakeLists.txt

@@ -12,6 +12,22 @@ set(OSRM_VERSION_MAJOR 5)
 set(OSRM_VERSION_MINOR 2)
 set(OSRM_VERSION_PATCH 0)
 
+# these two functions build up custom variables:
+#   OSRM_INCLUDE_PATHS and OSRM_DEFINES
+# These variables we want to pass to
+# include_directories and add_definitions for both
+# this build and for sharing externally via pkg-config
+
+function(add_dependency_includes includes)
+  list(APPEND OSRM_INCLUDE_PATHS "${includes}")
+  set(OSRM_INCLUDE_PATHS "${OSRM_INCLUDE_PATHS}" PARENT_SCOPE)
+endfunction(add_dependency_includes)
+
+function(add_dependency_defines defines)
+  list(APPEND OSRM_DEFINES "${defines}")
+  set(OSRM_DEFINES "${OSRM_DEFINES}" PARENT_SCOPE)
+endfunction(add_dependency_defines)
+
 set(CMAKE_EXPORT_COMPILE_COMMANDS ON)
 include(CheckCXXCompilerFlag)
 include(FindPackageHandleStandardArgs)
@@ -164,7 +180,7 @@ elseif(${CMAKE_CXX_COMPILER_ID} STREQUAL "GNU")
   # using GCC
   set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wall -Wextra -pedantic -Wuninitialized -Wunreachable-code -Wstrict-overflow=1 -D_FORTIFY_SOURCE=2 ${COLOR_FLAG} -fPIC")
   if(WIN32) # using mingw
-    add_definitions(-DWIN32)
+    add_dependency_defines(-DWIN32)
     set(OPTIONAL_SOCKET_LIBS ws2_32 wsock32)
   endif()
 elseif(${CMAKE_CXX_COMPILER_ID} STREQUAL "Intel")
@@ -173,12 +189,12 @@ elseif(${CMAKE_CXX_COMPILER_ID} STREQUAL "Intel")
 elseif(${CMAKE_CXX_COMPILER_ID} STREQUAL "MSVC")
   # using Visual Studio C++
   set(BOOST_COMPONENTS ${BOOST_COMPONENTS} date_time chrono zlib)
-  add_definitions(-DBOOST_LIB_DIAGNOSTIC)
-  add_definitions(-D_CRT_SECURE_NO_WARNINGS)
-  add_definitions(-DNOMINMAX) # avoid min and max macros that can break compilation
-  add_definitions(-D_USE_MATH_DEFINES) #needed for M_PI with cmath.h
-  add_definitions(-D_WIN32_WINNT=0x0501)
-  add_definitions(-DXML_STATIC)
+  add_dependency_defines(-DBOOST_LIB_DIAGNOSTIC)
+  add_dependency_defines(-D_CRT_SECURE_NO_WARNINGS)
+  add_dependency_defines(-DNOMINMAX) # avoid min and max macros that can break compilation
+  add_dependency_defines(-D_USE_MATH_DEFINES) #needed for M_PI with cmath.h
+  add_dependency_defines(-D_WIN32_WINNT=0x0501)
+  add_dependency_defines(-DXML_STATIC)
   find_library(ws2_32_LIBRARY_PATH ws2_32)
   target_link_libraries(osrm-extract wsock32 ws2_32)
 endif()
@@ -205,7 +221,7 @@ set(CMAKE_MODULE_LINKER_FLAGS "${CMAKE_MODULE_LINKER_FLAGS} ${LINKER_FLAGS}")
 
 # Activate C++11
 if(NOT ${CMAKE_CXX_COMPILER_ID} STREQUAL "MSVC")
-  set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11 ")
+  set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11")
 endif()
 
 # Configuring other platform dependencies
@@ -230,41 +246,54 @@ endif()
 list(APPEND CMAKE_MODULE_PATH "${CMAKE_CURRENT_SOURCE_DIR}/third_party/libosmium/cmake")
 set(OSMIUM_INCLUDE_DIR "${CMAKE_CURRENT_SOURCE_DIR}/third_party/libosmium/include")
 find_package(Osmium REQUIRED COMPONENTS io)
-include_directories(SYSTEM ${OSMIUM_INCLUDE_DIRS})
+add_dependency_includes(${OSMIUM_INCLUDE_DIR})
 
 
 find_package(Boost 1.49.0 REQUIRED COMPONENTS ${BOOST_COMPONENTS})
+
+# collect a subset of the boost libraries needed
+# by libosrm
+foreach(lib ${Boost_LIBRARIES})
+  if(NOT WIN32)
+    if(lib MATCHES filesystem OR lib MATCHES thread OR lib MATCHES iostreams OR lib MATCHES system)
+       list(APPEND BOOST_ENGINE_LIBRARIES "${lib}")
+    endif()
+  else()
+    list(APPEND BOOST_ENGINE_LIBRARIES "${lib}")
+  endif()
+endforeach(lib)
+
 if(NOT WIN32 AND NOT Boost_USE_STATIC_LIBS)
-  add_definitions(-DBOOST_TEST_DYN_LINK)
+  add_dependency_defines(-DBOOST_TEST_DYN_LINK)
 endif()
-add_definitions(-DBOOST_SPIRIT_USE_PHOENIX_V3)
-add_definitions(-DBOOST_RESULT_OF_USE_DECLTYPE)
-add_definitions(-DBOOST_FILESYSTEM_NO_DEPRECATED)
-include_directories(SYSTEM ${Boost_INCLUDE_DIRS})
+add_dependency_defines(-DBOOST_SPIRIT_USE_PHOENIX_V3)
+add_dependency_defines(-DBOOST_RESULT_OF_USE_DECLTYPE)
+add_dependency_defines(-DBOOST_FILESYSTEM_NO_DEPRECATED)
+add_dependency_includes(${Boost_INCLUDE_DIRS})
 
 find_package(Threads REQUIRED)
 
 find_package(TBB REQUIRED)
-include_directories(SYSTEM ${TBB_INCLUDE_DIR})
+add_dependency_includes(${TBB_INCLUDE_DIR})
 if(WIN32 AND CMAKE_BUILD_TYPE MATCHES Debug)
   set(TBB_LIBRARIES ${TBB_DEBUG_LIBRARIES})
 endif()
 
 find_package(Luabind REQUIRED)
 include(check_luabind)
-include_directories(SYSTEM ${LUABIND_INCLUDE_DIR})
+add_dependency_includes(${LUABIND_INCLUDE_DIR})
 
 set(USED_LUA_LIBRARIES ${LUA_LIBRARY})
 if(LUAJIT_FOUND)
   set(USED_LUA_LIBRARIES, LUAJIT_LIBRARIES)
 endif()
-include_directories(SYSTEM ${LUA_INCLUDE_DIR})
+add_dependency_includes(${LUA_INCLUDE_DIR})
 
 find_package(EXPAT REQUIRED)
-include_directories(SYSTEM ${EXPAT_INCLUDE_DIRS})
+add_dependency_includes(${EXPAT_INCLUDE_DIRS})
 
 find_package(STXXL REQUIRED)
-include_directories(SYSTEM ${STXXL_INCLUDE_DIR})
+add_dependency_includes(${STXXL_INCLUDE_DIR})
 
 set(OpenMP_FIND_QUIETLY ON)
 find_package(OpenMP)
@@ -274,16 +303,19 @@ if(OPENMP_FOUND)
 endif()
 
 find_package(BZip2 REQUIRED)
-include_directories(SYSTEM ${BZIP_INCLUDE_DIRS})
+add_dependency_includes(${BZIP2_INCLUDE_DIR})
 
 find_package(ZLIB REQUIRED)
-include_directories(SYSTEM ${ZLIB_INCLUDE_DIRS})
+add_dependency_includes(${ZLIB_INCLUDE_DIRS})
 
 if (ENABLE_JSON_LOGGING)
   message(STATUS "Enabling json logging")
-  add_definitions(-DENABLE_JSON_LOGGING)
+  add_dependency_defines(-DENABLE_JSON_LOGGING)
 endif()
 
+add_definitions(${OSRM_DEFINES})
+include_directories(SYSTEM ${OSRM_INCLUDE_PATHS})
+
 # Binaries
 target_link_libraries(osrm-datastore osrm_store ${Boost_LIBRARIES})
 target_link_libraries(osrm-extract osrm_extract ${Boost_LIBRARIES})
@@ -312,9 +344,8 @@ set(CONTRACTOR_LIBRARIES
     ${MAYBE_RT_LIBRARY}
     ${MAYBE_COVERAGE_LIBRARIES})
 set(ENGINE_LIBRARIES
-    ${Boost_LIBRARIES}
+    ${BOOST_ENGINE_LIBRARIES}
     ${CMAKE_THREAD_LIBS_INIT}
-    ${STXXL_LIBRARY}
     ${TBB_LIBRARIES}
     ${MAYBE_RT_LIBRARY}
     ${MAYBE_COVERAGE_LIBRARIES}
@@ -414,14 +445,23 @@ foreach(lib ${ENGINE_LIBRARIES})
   set(ENGINE_LIBRARY_LISTING "${ENGINE_LIBRARY_LISTING} -L${ENGINE_LIBRARY_PATH} -l${ENGINE_LIBRARY_NAME}")
 endforeach()
 
-configure_file(${CMAKE_CURRENT_SOURCE_DIR}/cmake/pkgconfig.in libosrm.pc @ONLY)
-install(FILES ${PROJECT_BINARY_DIR}/libosrm.pc DESTINATION lib/pkgconfig)
-
 if(BUILD_DEBIAN_PACKAGE)
   include(CPackDebianConfig)
   include(CPack)
 endif()
 
+function(JOIN VALUES GLUE OUTPUT)
+  string (REPLACE ";" "${GLUE}" _TMP_STR "${VALUES}")
+  set (${OUTPUT} "${_TMP_STR}" PARENT_SCOPE)
+endfunction()
+
+# Set up variables, then write to pkgconfig file
+JOIN("${OSRM_DEFINES}" " " OSRM_DEFINES_STRING)
+JOIN("-I${OSRM_INCLUDE_PATHS}" " -I" OSRM_INCLUDE_PATHS_STRING)
+
+configure_file(${CMAKE_CURRENT_SOURCE_DIR}/cmake/pkgconfig.in libosrm.pc @ONLY)
+install(FILES ${PROJECT_BINARY_DIR}/libosrm.pc DESTINATION lib/pkgconfig)
+
 # add a target to generate API documentation with Doxygen
 find_package(Doxygen)
 if(DOXYGEN_FOUND)

cmake/pkgconfig.in

@@ -8,4 +8,4 @@ Version: v@OSRM_VERSION_MAJOR@.@OSRM_VERSION_MINOR@.@OSRM_VERSION_PATCH@
 Requires:
 Libs: -L${libdir} -losrm
 Libs.private: @ENGINE_LIBRARY_LISTING@
-Cflags: -I${includedir} -I${includedir}/osrm
+Cflags: -I${includedir} -I${includedir}/osrm @OSRM_INCLUDE_PATHS_STRING@ @OSRM_DEFINES_STRING@ @CMAKE_CXX_FLAGS@

docs/http.md

@@ -485,7 +485,7 @@ step.
   | `type`            | Description                                                  |
   |-------------------|--------------------------------------------------------------|
   | turn              | a basic turn into direction of the `modifier`                |
-  | new name          | no turn is taken, but the road name changes. The Road can take a turn itself, following `modifier`                  |
+  | new name          | no turn is taken/possible, but the road name changes. The road can take a turn itself, following `modifier`.                  |
   | depart            | indicates the departure of the leg                           |
   | arrive            | indicates the destination of the leg                         |
   | merge             | merge onto a street (e.g. getting on the highway from a ramp, the `modifier specifies the direction of the merge`) |

docs/testing.md

@@ -0,0 +1,239 @@
+# Testsuite
+
+OSRM comes with a testsuite containing both unit-tests using the Boost library and cucucmber.js for scenario driven testing.
+
+## Unit Tests
+
+For a general introduction on Boost.Test have a look at [its docs](http://www.boost.org/doc/libs/1_60_0/libs/test/doc/html/index.html).
+
+### Separate Test Binaries
+
+Unit tests should be registered according to the sub-project they're in.
+If you want to write tests for utility functions, add them to the utility test binary.
+See `CMakeLists.txt` in the unit test directory for how to register new unit tests.
+
+### Using Boost.Test Primitives
+
+There is a difference between only reporting a failed condition and aborting the test right at a failed condition.
+Have a look at [`BOOST_CHECK` vs `BOOST_REQUIRE`](http://www.boost.org/doc/libs/1_60_0/libs/test/doc/html/boost_test/utf_reference/testing_tool_ref/assertion_boost_level.html).
+Instead of manually checking e.g. for equality, less than, if a function throws etc. use their [corresponding Boost.Test primitives](http://www.boost.org/doc/libs/1_60_0/libs/test/doc/html/boost_test/utf_reference/testing_tool_ref.html).
+
+If you use `BOOST_CHECK_EQUAL` you have to implement `operator<<` for your type so that Boost.Test can print mismatches.
+If you do not want to do this, define `BOOST_TEST_DONT_PRINT_LOG_VALUE` (and undef it after the check call) or sidestep it with `BOOST_CHECK(fst == snd);`.
+
+### Test Fixture
+
+If you need to test features on a real dataset (think about this twice: prefer cucumber and dataset-independent tests for their reproducibility and minimality), there is a fixed dataset in `test/data`.
+This dataset is a small extract and may not even contain all tags or edge cases.
+Furthermore this dataset is not in sync with what you see in up-to-date OSM maps or on the demo server.
+See the library tests for how to add new dataset dependent tests.
+
+
+## Cucumber
+
+For a general introduction on cucumber in our testsuite, have a look at [the wiki](https://github.com/Project-OSRM/osrm-backend/wiki/Cucumber-Test-Suite).
+
+This documentation aims to supply a guideline on how to write cucumber tests that test new features introduced into osrm.
+
+### Test the feature
+
+It is often tempting to reduce the test to a path and accompanying instructions. Instructions can and will change over the course of improving guidance.
+
+Instructions should only be used when writing a feature located in `features/guidance`. All other features should avoid using instructions at all.
+
+### Write Tests to Scale
+
+OSRM is a navigation engine. Tests should always consider this background. 
+
+An important implication is the grid size. If tests use a very small grid size, you run into the chance of instructions being omitted.
+For example:
+
+```
+Background:
+    Given the profile "car"
+    Given a grid size of 10 meters
+
+Scenario: Testbot - Straight Road
+    Given the node map
+        | a | b | c | d |
+
+    And the ways
+        | nodes | highway |
+        | ab    | primary |
+        | bc    | primary |
+        | cd    | primary |
+
+    When I route I should get
+        | from | to | route       |
+        | a    | d  | ab,bc,cd,cd |
+
+```
+
+In a navigation engine, the instructions
+
+ - depart east on ab
+ - in 10 meters the road name changes to bc
+ - in 10 meters the road name changes to cd
+ - you arrived at cd
+ 
+would be impossible to announce and not helpful at all.
+Since no actual choices exist, the route you get could result in `ab,cd` and simply say `depart` and `arrive`.
+
+To prevent such surprises, always consider the availability of other roads and use grid sizes/road lengths that correspond to actually reasonable scenarios in a road network.
+
+### Use names
+
+If you specify many nodes in close succession to present a specific road geometry, consider using `name` to indicate to OSRM that the segment is a single road.
+
+```
+Background:
+    Given the profile "car"
+    Given a grid size of 10 meters
+
+Scenario: Testbot - Straight Road
+    Given the node map
+        | a | b | c | d |
+
+    And the ways
+        | nodes | highway | name |
+        | ab    | primary | road |
+        | bc    | primary | road |
+        | cd    | primary | road |
+
+    When I route I should get
+        | from | to | route     | turns         |
+        | a    | d  | road,road | depart,arrive |
+
+```
+
+Guidance guarantees only essential maneuvers. You will always see `depart` and `arrive` as well as all turns that are not obvious.
+
+So the following scenario does not change the instructions
+
+```
+Background:
+    Given the profile "car"
+    Given a grid size of 10 meters
+
+Scenario: Testbot - Straight Road
+    Given the node map
+        | a | b |
+        | d | c |
+
+    And the ways
+        | nodes | highway | name |
+        | ab    | primary | road |
+        | bc    | primary | road |
+        | cd    | primary | road |
+
+    When I route I should get
+        | from | to | route     | turns         |
+        | a    | d  | road,road | depart,arrive |
+```
+
+but if we modify it to
+
+```
+Background:
+    Given the profile "car"
+    Given a grid size of 10 meters
+
+Scenario: Testbot - Straight Road
+    Given the node map
+        | a | b | e |
+        | d | c |   |
+
+    And the ways
+        | nodes | highway | name |
+        | ab    | primary | road |
+        | bc    | primary | road |
+        | cd    | primary | road |
+        | be    | primary | turn |
+
+    When I route I should get
+        | from | to | route          | turns                        |
+        | a    | d  | road,road,road | depart,continue right,arrive |
+```
+
+### Test all directions
+
+Modelling a road as roundabout has an implied oneway tag associated with it. In the following case, we can route from `a` to `d` but not from `d` to `a`.
+To discover those errors, make sure to check for all allowed directions.
+
+```
+Scenario: Enter and Exit mini roundabout with sharp angle   # features/guidance/mini-roundabout.feature:37
+    Given the profile "car"                                   # features/step_definitions/data.js:8
+    Given a grid size of 10 meters                            # features/step_definitions/data.js:20
+    Given the node map                                        # features/step_definitions/data.js:45
+        | a | b |   |
+        |   | c | d |
+    And the ways                                              # features/step_definitions/data.js:128
+        | nodes | highway         | name |
+        | ab    | tertiary        | MySt |
+        | bc    | roundabout      |      |
+        | cd    | tertiary        | MySt |
+    When I route I should get                                 # features/step_definitions/routing.js:4
+        | from | to | route     | turns         | #                                               |
+        | a    | d  | MySt,MySt | depart,arrive | # suppress multiple enter/exit mini roundabouts |
+        | d    | a  | MySt,MySt | depart,arrive | # suppress multiple enter/exit mini roundabouts |
+    Tables were not identical:
+        |  from |     to |     route     |     turns         |     #
+        |     a |      d |     MySt,MySt |     depart,arrive |     # suppress multiple enter/exit mini roundabouts |
+        | (-) d |  (-) a | (-) MySt,MySt | (-) depart,arrive | (-) # suppress multiple enter/exit mini roundabouts |
+        | (+) d |  (+) a | (+)           | (+)               | (+) # suppress multiple enter/exit mini roundabouts |
+```
+
+### Prevent Randomness
+
+Some features in OSRM can result in strange experiences during testcases. To prevent some of these issues, follow the guidelines below.
+
+#### Use Waypoints
+
+Using grid nodes as waypoints offers the chance of unwanted side effects.
+OSRM converts the grid into a so called edge-based graph.
+
+```
+Scenario: Testbot - Intersection
+    Given the node map
+        |   | e |   |
+        | b | a | d |
+        |   | c |   |
+
+    And the ways
+        | nodes | highway | oneway |
+        | ab    | primary | yes    |
+        | ac    | primary | yes    |
+        | ad    | primary | yes    |
+        | ae    | primary | yes    |
+```
+Selecting `a` as a `waypoint` results in four possible starting locations. Which one of the routes `a,b`, `a,c`, `a,d`, or `a,e` is found is pure chance and depends on the order in the static `r-tree`.
+
+To guarantee discovery, use:
+
+```
+Scenario: Testbot - Intersection
+    Given the node map
+        |   |   | e |   |   |
+        |   |   | 4 |   |   |
+        | b | 1 | a | 3 | d |
+        |   |   | 2 |   |   |
+        |   |   | c |   |   |
+
+    And the ways
+        | nodes | highway | oneway |
+        | ab    | primary | yes    |
+        | ac    | primary | yes    |
+        | ad    | primary | yes    |
+        | ae    | primary | yes    |
+```
+And use `1`,`2`,`3`, and `4` as starting waypoints. The routes `1,b`, `2,c`, `3,d`, and `4,e` can all be discovered.
+
+#### Allow For Small Offsets
+
+Whenever you are independent of the start location (see use waypoints), the waypoint chosen as start/end location can still influence distances/durations.
+
+If you are testing for a duration metric, allow for a tiny offset to ensure a passing test in the presence of rounding/snapping issues.
+
+#### Don't Rely on Alternatives
+
+Alternative route discovery is a random feature in itself. The discovery of routes depends on the contraction order of roads and cannot be assumed successful, ever.

example/CMakeLists.txt

@@ -6,10 +6,13 @@ Please create a directory and run cmake from there, passing the path to this sou
 This process created the file `CMakeCache.txt' and the directory `CMakeFiles'. Please delete them.")
 endif()
 
+if(NOT CMAKE_BUILD_TYPE MATCHES Debug)
+  set(CMAKE_BUILD_TYPE Release)
+endif()
+
 project(osrm-example C CXX)
 
 list(APPEND CMAKE_MODULE_PATH "${CMAKE_CURRENT_SOURCE_DIR}/cmake")
-set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11 ")
 
 set(bitness 32)
 if(CMAKE_SIZEOF_VOID_P EQUAL 8)
@@ -23,11 +26,11 @@ if(WIN32 AND MSVC_VERSION LESS 1900)
   message(FATAL_ERROR "Building with Microsoft compiler needs Latest Visual Studio 2015 (Community or better)")
 endif()
 
+link_directories(${LibOSRM_LIBRARY_DIRS})
 add_executable(osrm-example example.cpp)
 
 find_package(LibOSRM REQUIRED)
-find_package(Boost 1.49.0 COMPONENTS filesystem system thread iostreams REQUIRED)
-
-target_link_libraries(osrm-example ${LibOSRM_LIBRARIES} ${Boost_LIBRARIES})
-include_directories(SYSTEM ${LibOSRM_INCLUDE_DIRS} ${Boost_INCLUDE_DIRS})
 
+target_link_libraries(osrm-example ${LibOSRM_LIBRARIES} ${LibOSRM_DEPENDENT_LIBRARIES})
+include_directories(SYSTEM ${LibOSRM_INCLUDE_DIRS})
+set(CMAKE_CXX_FLAGS ${LibOSRM_CXXFLAGS})

example/cmake/FindLibOSRM.cmake

@@ -1,13 +1,24 @@
 # - Try to find LibOSRM
 # Once done this will define
 #  LibOSRM_FOUND - System has LibOSRM
-#  LibOSRM_INCLUDE_DIRS - The LibOSRM include directories
-#  LibOSRM_LIBRARIES - The libraries needed to use LibOSRM
-#  LibOSRM_DEFINITIONS - Compiler switches required for using LibOSRM
+#  LibOSRM_LIBRARIES - The libraries and ldflags needed to use LibOSRM
+#  LibOSRM_DEPENDENT_LIBRARIES - The libraries and ldflags need to link LibOSRM dependencies
+#  LibOSRM_LIBRARY_DIRS - The libraries paths needed to find LibOSRM
+#  LibOSRM_CXXFLAGS - Compiler switches required for using LibOSRM
 
 find_package(PkgConfig)
-pkg_check_modules(PC_LibOSRM QUIET libosrm)
-set(LibOSRM_DEFINITIONS ${PC_LibOSRM_CFLAGS_OTHER})
+pkg_search_module(PC_LibOSRM QUIET libosrm)
+
+function(JOIN VALUES GLUE OUTPUT)
+  string (REPLACE ";" "${GLUE}" _TMP_STR "${VALUES}")
+  set (${OUTPUT} "${_TMP_STR}" PARENT_SCOPE)
+endfunction()
+
+list(REMOVE_ITEM PC_LibOSRM_CFLAGS " ")
+JOIN("${PC_LibOSRM_CFLAGS}" " " output)
+
+set(LibOSRM_CXXFLAGS ${output})
+set(LibOSRM_LIBRARY_DIRS ${PC_LibOSRM_LIBRARY_DIRS})
 
 find_path(LibOSRM_INCLUDE_DIR osrm/osrm.hpp
   PATH_SUFFIXES osrm include/osrm include
@@ -19,8 +30,6 @@ find_path(LibOSRM_INCLUDE_DIR osrm/osrm.hpp
   /opt/local
   /opt)
 
-set(LibOSRM_INCLUDE_DIRS ${LibOSRM_INCLUDE_DIR} ${LibOSRM_INCLUDE_DIR}/osrm)
-
 find_library(TEST_LibOSRM_STATIC_LIBRARY Names osrm.lib libosrm.a
   PATH_SUFFIXES osrm lib/osrm lib
   HINTS ${PC_LibOSRM_LIBDIR} ${PC_LibOSRM_LIBRARY_DIRS}
@@ -30,7 +39,7 @@ find_library(TEST_LibOSRM_STATIC_LIBRARY Names osrm.lib libosrm.a
   /usr
   /opt/local
   /opt)
-find_library(TEST_LibOSRM_DYNAMIC_LIBRARY Names osrm.dynlib libosrm.so
+find_library(TEST_LibOSRM_DYNAMIC_LIBRARY Names libosrm.dylib libosrm.so
   PATH_SUFFIXES osrm lib/osrm lib
   HINTS ${PC_LibOSRM_LIBDIR} ${PC_LibOSRM_LIBRARY_DIRS}
   ~/Library/Frameworks
@@ -40,26 +49,15 @@ find_library(TEST_LibOSRM_DYNAMIC_LIBRARY Names osrm.dynlib libosrm.so
   /opt/local
   /opt)
 
-if (NOT ("${TEST_LibOSRM_STATIC_LIBRARY}" STREQUAL "TEST_LibOSRM_STATIC_LIBRARY-NOTFOUND"))
-  if ("${PC_LibOSRM_STATIC_LIBRARIES}" STREQUAL "")
-    set(LibOSRM_STATIC_LIBRARIES ${TEST_LibOSRM_STATIC_LIBRARY})
-  else()
-    set(LibOSRM_STATIC_LIBRARIES ${PC_LibOSRM_STATIC_LIBRARIES})
-  endif()
-  set(LibOSRM_LIBRARIES ${LibOSRM_STATIC_LIBRARIES})
-endif()
-
-if (NOT ("${TEST_LibOSRM_DYNAMIC_LIBRARY}" STREQUAL "TEST_LibOSRM_DYNAMIC_LIBRARY-NOTFOUND"))
-  if ("${PC_LibOSRM_LIBRARIES}" STREQUAL "")
-    set(LibOSRM_DYNAMIC_LIBRARIES ${TEST_LibOSRM_DYNAMIC_LIBRARY})
-  else()
-    set(LibOSRM_DYNAMIC_LIBRARIES ${PC_LibOSRM_LIBRARIES})
-  endif()
-  set(LibOSRM_LIBRARIES ${LibOSRM_DYNAMIC_LIBRARIES})
-endif()
+set(LibOSRM_DEPENDENT_LIBRARIES ${PC_LibOSRM_STATIC_LDFLAGS})
+set(LibOSRM_LIBRARIES ${PC_LibOSRM_LDFLAGS})
 
 include(FindPackageHandleStandardArgs)
 # handle the QUIETLY and REQUIRED arguments and set LIBOSRM_FOUND to TRUE
 # if all listed variables are TRUE
 find_package_handle_standard_args(LibOSRM DEFAULT_MSG
-                                LibOSRM_LIBRARIES LibOSRM_INCLUDE_DIR)
+                                LibOSRM_LIBRARY_DIRS
+                                LibOSRM_CXXFLAGS
+                                LibOSRM_LIBRARIES
+                                LibOSRM_DEPENDENT_LIBRARIES
+                                LibOSRM_INCLUDE_DIR)

features/bicycle/oneway.feature

@@ -115,7 +115,7 @@ Feature: Bike - Oneway streets
 
     Scenario: Bike - Two consecutive oneways
         Given the node map
-            | a | b | c |
+            | a | b |   | c |
 
         And the ways
             | nodes | oneway |

features/car/oneway.feature

@@ -68,7 +68,7 @@ Feature: Car - Oneway streets
 
     Scenario: Car - Two consecutive oneways
         Given the node map
-            | a | b | c |
+            | a | b |   | c |
 
         And the ways
             | nodes | oneway |

features/car/restrictions.feature

@@ -5,6 +5,7 @@ Feature: Car - Turn restrictions
 
     Background: Use car routing
         Given the profile "car"
+        Given a grid size of 200 meters
 
     @no_turning
     Scenario: Car - No left turn

features/car/traffic_turn_penalties.feature

@@ -12,19 +12,17 @@ Feature: Traffic - turn penalties
             | nodes | highway |
             | ad    | primary |
             | cd    | primary |
-            | de    | primary |
+            | def   | primary |
             | dhk   | primary |
 
             | bf    | primary |
-            | ef    | primary |
             | fg    | primary |
             | fim   | primary |
 
             | jk    | primary |
-            | kl    | primary |
+            | klm   | primary |
             | ko    | primary |
 
-            | lm    | primary |
             | mn    | primary |
             | mp    | primary |
         And the profile "car"
@@ -32,22 +30,22 @@ Feature: Traffic - turn penalties
 
     Scenario: Weighting not based on turn penalty file
         When I route I should get
-            | from | to | route          | speed   | time      |
-            | a    | h  | ad,dhk,dhk     | 63 km/h | 11.5s +-1 |
+            | from | to | route           | speed   | time      |
+            | a    | h  | ad,dhk,dhk      | 63 km/h | 11.5s +-1 |
                                                                   # straight
-            | i    | g  | fim,fg,fg      | 59 km/h | 12s  +-1  |
+            | i    | g  | fim,fg,fg       | 59 km/h | 12s  +-1  |
                                                                   # right
-            | a    | e  | ad,de,de       | 57 km/h | 12.5s +-1 |
+            | a    | e  | ad,def,def      | 57 km/h | 12.5s +-1 |
                                                                   # left
-            | c    | g  | cd,de,ef,fg,fg | 63 km/h | 23s +-1   |
+            | c    | g  | cd,def,fg,fg    | 63 km/h | 23s +-1   |
                                                                   # double straight
-            | p    | g  | mp,fim,fg,fg   | 61 km/h | 23.5s +-1 |
+            | p    | g  | mp,fim,fg,fg    | 61 km/h | 23.5s +-1 |
                                                                   # straight-right
-            | a    | l  | ad,dhk,kl,kl   | 60 km/h | 24s +-1   |
+            | a    | l  | ad,dhk,klm,klm  | 60 km/h | 24s +-1   |
                                                                   # straight-left
-            | l    | e  | kl,dhk,de,de   | 59 km/h | 24.5s +-1 |
+            | l    | e  | klm,dhk,def,def | 59 km/h | 24.5s +-1 |
                                                                   # double right
-            | g    | n  | fg,fim,mn,mn   | 57 km/h | 25s +-1   |
+            | g    | n  | fg,fim,mn,mn    | 57 km/h | 25s +-1   |
                                                                   # double left
 
     Scenario: Weighting based on turn penalty file
@@ -62,24 +60,24 @@ Feature: Traffic - turn penalties
             """
         And the contract extra arguments "--turn-penalty-file penalties.csv"
         When I route I should get
-            | from | to | route                    | speed   | time      |
-            | a    | h  | ad,dhk,dhk               | 63 km/h | 11.5s +-1 |
+            | from | to | route                 | speed   | time      |
+            | a    | h  | ad,dhk,dhk            | 63 km/h | 11.5s +-1 |
                                                                               # straight
-            | i    | g  | fim,fg,fg                | 55 km/h | 13s +-1   |
+            | i    | g  | fim,fg,fg             | 55 km/h | 13s +-1   |
                                                                               # right - ifg penalty
-            | a    | e  | ad,de,de                 | 64 km/h | 11s +-1   |
+            | a    | e  | ad,def,def            | 64 km/h | 11s +-1   |
                                                                               # left - faster because of negative ade penalty
-            | c    | g  | cd,de,ef,fg,fg           | 63 km/h | 23s +-1   |
+            | c    | g  | cd,def,fg,fg          | 63 km/h | 23s +-1   |
                                                                               # double straight
-            | p    | g  | mp,fim,fg,fg             | 59 km/h | 24.5s +-1 |
+            | p    | g  | mp,fim,fg,fg          | 59 km/h | 24.5s +-1 |
                                                                               # straight-right - ifg penalty
-            | a    | l  | ad,de,ef,fim,lm,lm       | 61 km/h | 35.5s +-1 |
+            | a    | l  | ad,def,fim,klm,klm    | 61 km/h | 35.5s +-1 |
                                                                               # was straight-left - forced around by hkl penalty
-            | l    | e  | lm,fim,ef,ef             | 57 km/h | 25s +-1   |
+            | l    | e  | klm,fim,def,def       | 57 km/h | 25s +-1   |
                                                                               # double right - forced left by lkh penalty
-            | g    | n  | fg,fim,mn,mn             | 30 km/h | 47.5s +-1   |
+            | g    | n  | fg,fim,mn,mn          | 30 km/h | 47.5s +-1 |
                                                                               # double left - imn penalty
-            | j    | c  | jk,kl,lm,fim,ef,de,cd,cd | 60 km/h | 48s +-1   |
+            | j    | c  | jk,klm,fim,def,cd,cd  | 60 km/h | 48s +-1   |
                                                                               # double left - hdc penalty ever so slightly higher than imn; forces all the way around
 
     Scenario: Too-negative penalty clamps, but does not fail
@@ -90,8 +88,8 @@ Feature: Traffic - turn penalties
             1,4,5,-10
             """
         When I route I should get
-            | from | to | route    | time    |
-            | a    | d  | ad,ad    | 10s +-1 |
-            | a    | e  | ad,de,de | 10s +-1 |
-            | b    | f  | bf,bf    | 10s +-1 |
-            | b    | g  | bf,fg,fg | 20s +-1 |
+            | from | to | route      | time    |
+            | a    | d  | ad,ad      | 10s +-1 |
+            | a    | e  | ad,def,def | 10s +-1 |
+            | b    | f  | bf,bf      | 10s +-1 |
+            | b    | g  | bf,fg,fg   | 20s +-1 |

features/guidance/collapse.feature

@@ -345,3 +345,288 @@ Feature: Collapse
             | a,d       | first,first,first,first | depart,continue left,continue right,arrive |
             | a,e       | first,second,second     | depart,turn left,arrive                    |
             | a,f       | first,third,third       | depart,turn straight,arrive                |
+
+     Scenario: Bridge on unnamed road
+        Given the node map
+            | a | b |   |   |   | c | d |
+
+        And the ways
+            | nodes | highway | name   |
+            | ab    | primary |        |
+            | bc    | primary | Bridge |
+            | cd    | primary |        |
+
+        When I route I should get
+            | waypoints | route | turns         |
+            | a,d       | ,     | depart,arrive |
+
+     Scenario: Crossing Bridge into Segregated Turn
+        Given the node map
+            |   |   |   |   |   | f |
+            | i | h |   |   | g | e |
+            | a | b |   |   | c | d |
+
+        And the ways
+            | nodes | highway | oneway | name        |
+            | ab    | primary | yes    | to_bridge   |
+            | bc    | primary | yes    | bridge      |
+            | cd    | primary | yes    | off_bridge  |
+            | de    | primary | yes    |             |
+            | ef    | primary | no     | target_road |
+            | eg    | primary | yes    | off_bridge  |
+            | gh    | primary | yes    | bridge      |
+            | hi    | primary | yes    | to_bridge   |
+
+        When I route I should get
+            | waypoints | route                             | turns                   |
+            | a,f       | to_bridge,target_road,target_road | depart,turn left,arrive |
+
+    Scenario: Pankenbruecke
+        Given the node map
+            | h |   |   |   |   |   | i |   |   |   |   |   |   |
+            |   |   | b | c | d | e | f |   |   |   |   |   | g |
+            | a |   |   |   |   |   |   |   |   |   |   |   |   |
+
+        And the ways
+            | nodes | highway | name    | oneway |
+            | abh   | primary | inroad  | yes    |
+            | bc    | primary | inroad  | no     |
+            | cd    | primary | bridge  | no     |
+            | defg  | primary | outroad | no     |
+            | fi    | primary | cross   | no     |
+
+       When I route I should get
+            | waypoints | route                  | turns                           |
+            | a,g       | inroad,outroad,outroad | depart,new name straight,arrive |
+            | a,i       | inroad,cross,cross     | depart,turn left,arrive         |
+
+     Scenario: Close Turns - Don't Collapse
+        Given the node map
+            |   | g | d |   |
+            |   |   |   |   |
+            | e | b | c | f |
+            |   |   |   |   |
+            |   | a | h |   |
+
+        And the ways
+            | nodes | highway | name     |
+            | ab    | primary | in       |
+            | ebcf  | primary | cross    |
+            | cd    | primary | out      |
+            | bg    | primary | straight |
+            | ch    | primary | reverse  |
+
+        When I route I should get
+            | waypoints | route                    | turns                               |
+            | a,d       | in,cross,out,out         | depart,turn right,turn left,arrive  |
+            | a,h       | in,cross,reverse,reverse | depart,turn right,turn right,arrive |
+            | g,d       | straight,cross,out,out   | depart,turn left,turn left,arrive   |
+
+     Scenario: No Name During Turns
+        Given the node map
+            | a | b |   |
+            |   | c | d |
+
+        And the ways
+            | nodes | highway  | name |
+            | ab    | tertiary | road |
+            | bc    | tertiary |      |
+            | cd    | tertiary | road |
+
+        When I route I should get
+            | waypoints | route     | turns         |
+            | a,d       | road,road | depart,arrive |
+
+    Scenario: No Name During Turns, Random Oneway
+        Given the node map
+            | a | b |   |
+            |   | c | d |
+
+        And the ways
+            | nodes | highway  | name | oneway |
+            | ab    | tertiary | road | no     |
+            | bc    | tertiary |      | yes    |
+            | cd    | tertiary | road | no     |
+
+        When I route I should get
+            | waypoints | route     | turns         |
+            | a,d       | road,road | depart,arrive |
+
+    Scenario: Pulled Back Turn
+        Given the node map
+            |   |   | d |
+            | a | b | c |
+            |   | e |   |
+
+        And the ways
+            | nodes | highway  | name  |
+            | abc   | tertiary | road  |
+            | cd    | tertiary | left  |
+            | be    | tertiary | right |
+
+        When I route I should get
+            | waypoints | route            | turns                    |
+            | a,d       | road,left,left   | depart,turn left,arrive  |
+            | a,e       | road,right,right | depart,turn right,arrive |
+
+    Scenario: No Name During Turns, keep important turns
+        Given the node map
+            | a | b | e |
+            |   | c | d |
+
+        And the ways
+            | nodes | highway  | name  |
+            | ab    | tertiary | road  |
+            | bc    | tertiary |       |
+            | cd    | tertiary | road  |
+            | be    | tertiary | other |
+
+        When I route I should get
+            | waypoints | route          | turns                        |
+            | a,d       | road,road,road | depart,continue right,arrive |
+
+    Scenario: Segregated Intersection into Slight Turn
+        Given the node map
+            | h |   |   |   |   |   |   |
+            | a |   |   |   |   |   |   |
+            |   |   |   |   |   |   |   |
+            |   |   | g |   |   |   |   |
+            |   |   | b | f |   |   |   |
+            |   |   |   | c |   |   |   |
+            |   |   |   |   |   |   |   |
+            |   |   |   |   |   |   |   |
+            |   |   |   |   |   |   | e |
+            |   |   |   |   |   |   | d |
+            |   |   | j | i |   |   |   |
+
+        And the ways
+            | nodes | highway   | name | oneway |
+            | abcd  | primary   | road | yes    |
+            | efgh  | primary   | road | yes    |
+            | icf   | secondary | in   | yes    |
+            | gbj   | secondary | out  | yes    |
+
+        When I route I should get
+            | waypoints | route        | turns                           |
+            | i,h       | in,road,road | depart,turn slight left,arrive  |
+            | a,d       | road,road    | depart,arrive                   |
+            | a,j       | road,out,out | depart,turn slight right,arrive |
+
+    Scenario: Don't collapse everything to u-turn / too wide
+        Given the node map
+            | a |   | b |   | e |
+            |   |   |   |   |   |
+            | d |   | c |   | f |
+
+        And the ways
+            | nodes | highway   | name   |
+            | abcd  | primary   | road   |
+            | be    | secondary | top    |
+            | cf    | secondary | bottom |
+
+        When I route I should get
+            | waypoints | turns                                          | route               |
+            | a,d       | depart,continue right,end of road right,arrive | road,road,road,road |
+            | d,a       | depart,continue left,end of road left,arrive   | road,road,road,road |
+
+    Scenario: Forking before a turn
+        Given the node map
+            |   |   |   | g |   |
+            |   |   |   |   |   |
+            |   |   |   | c |   |
+            | a |   | b | d | e |
+            |   |   |   |   |   |
+            |   |   |   | f |   |
+
+        And the ways
+            | nodes | name  | oneway | highway   |
+            | ab    | road  | yes    | primary   |
+            | bd    | road  | yes    | primary   |
+            | bc    | road  | yes    | primary   |
+            | de    | road  | yes    | primary   |
+            | fdcg  | cross | no     | secondary |
+
+        And the relations
+            | type        | way:from | way:to | node:via | restriction   |
+            | restriction | bd       | fdcg   | d        | no_left_turn  |
+            | restriction | bc       | fdcg   | c        | no_right_turn |
+
+        When I route I should get
+          | waypoints | route            | turns                   |
+          | a,g       | road,cross,cross | depart,turn left,arrive |
+          | a,e       | road,road        | depart,arrive           |
+
+    Scenario: Forking before a turn (narrow)
+        Given the node map
+            |   |   |   | g |   |
+            |   |   |   |   |   |
+            |   |   |   | c |   |
+            | a | b |   | d | e |
+            |   |   |   |   |   |
+            |   |   |   | f |   |
+
+        And the ways
+            | nodes | name  | oneway | highway   |
+            | ab    | road  | yes    | primary   |
+            | bd    | road  | yes    | primary   |
+            | bc    | road  | yes    | primary   |
+            | de    | road  | yes    | primary   |
+            | fdcg  | cross | no     | secondary |
+
+        And the relations
+            | type        | way:from | way:to | node:via | restriction   |
+            | restriction | bd       | fdcg   | d        | no_left_turn  |
+            | restriction | bc       | fdcg   | c        | no_right_turn |
+
+        When I route I should get
+          | waypoints | route            | turns                   |
+          | a,g       | road,cross,cross | depart,turn left,arrive |
+          | a,e       | road,road        | depart,arrive           |
+
+    Scenario: Forking before a turn (forky)
+        Given the node map
+            |   |   |   | g |   |   |
+            |   |   |   |   |   |   |
+            |   |   |   | c |   |   |
+            | a | b |   |   |   |   |
+            |   |   |   |   | d |   |
+            |   |   |   |   | f | e |
+
+        And the ways
+            | nodes | name  | oneway | highway   |
+            | ab    | road  | yes    | primary   |
+            | bd    | road  | yes    | primary   |
+            | bc    | road  | yes    | primary   |
+            | de    | road  | yes    | primary   |
+            | fdcg  | cross | no     | secondary |
+
+        And the relations
+            | type        | way:from | way:to | node:via | restriction   |
+            | restriction | bd       | fdcg   | d        | no_left_turn  |
+            | restriction | bc       | fdcg   | c        | no_right_turn |
+
+        When I route I should get
+          | waypoints | route                 | turns                                          |
+          | a,g       | road,cross,cross      | depart,turn left,arrive                        |
+          | a,e       | road,road,road        | depart,continue slight right,arrive            |
+          # We should discuss whether the next item should be collapsed to depart,turn right,arrive.
+          | a,f       | road,road,cross,cross | depart,continue slight right,turn right,arrive |
+
+     Scenario: On-Off on Highway
+        Given the node map
+            | f |   |   |   |
+            | a | b | c | d |
+            |   |   |   | e |
+
+        And the ways
+            | nodes | name | highway       | oneway |
+            | abcd  | Hwy  | motorway      | yes    |
+            | fb    | on   | motorway_link | yes    |
+            | ce    | off  | motorway_link | yes    |
+
+        When I route I should get
+            | waypoints | route          | turns                                           |
+            | a,d       | Hwy,Hwy        | depart,arrive                                   |
+            | f,d       | on,Hwy,Hwy     | depart,merge slight right,arrive                |
+            | f,e       | on,Hwy,off,off | depart,merge slight right,off ramp right,arrive |
+            | a,e       | Hwy,off,off    | depart,off ramp right,arrive                    |

features/guidance/fork.feature

@@ -281,3 +281,18 @@ Feature: Fork Instructions
             | a,c       | abd,bc,bc | depart,turn slight left,arrive  |
             | a,d       | abd,abd   | depart,arrive                   |
             | a,e       | abd,be,be | depart,turn slight right,arrive |
+
+    Scenario: Don't Fork when leaving Road
+        Given the node map
+            | a |   | b |   | c |
+            |   |   |   |   | d |
+
+        And the ways
+            | nodes  | highway   |
+            | abc    | secondary |
+            | bd     | secondary |
+
+       When I route I should get
+            | waypoints | route     | turns                           |
+            | a,c       | abc,abc   | depart,arrive                   |
+            | a,d       | abc,bd,bd | depart,turn slight right,arrive |

features/guidance/intersections.feature

@@ -117,9 +117,9 @@ Feature: Intersections Data
             | cf     | corner        |
 
        When I route I should get
-            | waypoints | route                        | turns                          | intersections                                                        |
-            | a,d       | through,through              | depart,arrive                  | true:90,true:0 true:90 false:270,true:90 true:180 false:270;true:270 |
-            | f,a       | corner,throughbridge,through | depart,end of road left,arrive | true:0;true:90 false:180 true:270,true:0 false:90 true:270;true:90   |
+            | waypoints | route                  | turns                          | intersections                                                        |
+            | a,d       | through,through        | depart,arrive                  | true:90,true:0 true:90 false:270,true:90 true:180 false:270;true:270 |
+            | f,a       | corner,through,through | depart,end of road left,arrive | true:0;true:90 false:180 true:270,true:0 false:90 true:270;true:90   |
 
     Scenario: Roundabouts
         Given the node map

features/guidance/new-name.feature

@@ -3,7 +3,7 @@ Feature: New-Name Instructions
 
     Background:
         Given the profile "car"
-        Given a grid size of 10 meters
+        Given a grid size of 100 meters
 
     Scenario: Undisturbed name Change
         Given the node map
@@ -136,7 +136,7 @@ Feature: New-Name Instructions
 
     Scenario: Empty road names - Announce Change From, suppress Change To
         Given the node map
-            | a |  | b |  | c |  | d |
+            | a |  | b | 1 | c |  | d |
 
         And the ways
             | nodes | name |
@@ -147,7 +147,7 @@ Feature: New-Name Instructions
         When I route I should get
             | waypoints | route    | turns                           |
             | a,d       | ab,cd,cd | depart,new name straight,arrive |
-            | a,c       | ab,      | depart,arrive                   |
+            | a,1       | ab,      | depart,arrive                   |
 
     Scenario: Empty road names - Loose name shortly
         Given the node map

features/guidance/turn.feature

@@ -806,3 +806,30 @@ Feature: Simple Turns
             | a,e       | abc,be,be | depart,turn right,arrive        |
             | a,f       | abc,bf,bf | depart,turn slight right,arrive |
 
+    Scenario: Turn Lane on Splitting up Road
+        Given the node map
+            |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |
+            | g |   |   |   | f |   |   |   |   |   |   |   |   |   |   |
+            |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |
+            |   |   |   |   |   | h |   |   | e |   |   | c |   |   | d |
+            | a |   |   | b |   |   |   |   |   |   |   |   |   |   |   |
+            |   |   |   | i |   |   |   |   |   |   |   |   |   |   |   |
+
+        And the ways
+            | nodes | highway        | oneway | name  |
+            | ab    | secondary      | yes    | road  |
+            | be    | secondary      | yes    | road  |
+            | ecd   | secondary      | no     | road  |
+            | efg   | secondary      | yes    | road  |
+            | ehb   | secondary_link | yes    | road  |
+            | bi    | tertiary       | no     | cross |
+
+        And the relations
+            | type        | way:from | way:to | node:via | restriction  |
+            | restriction | ehb      | be     | b        | no_left_turn |
+
+        When I route I should get
+            | waypoints | route            | turns                   |
+            | a,d       | road,road        | depart,arrive           |
+            | d,i       | road,cross,cross | depart,turn left,arrive |
+            | d,g       | road,road        | depart,arrive           |

features/testbot/alternative.feature

@@ -3,6 +3,7 @@ Feature: Alternative route
 
     Background:
         Given the profile "testbot"
+        And a grid size of 200 meters
 
         And the node map
             |   | b | c | d |   |   |
@@ -17,11 +18,11 @@ Feature: Alternative route
             | dz    |
             | ag    |
             | gh    |
+            | ck    |
+            | kh    |
             | hi    |
             | ij    |
             | jz    |
-            | ck    |
-            | kh    |
 
     Scenario: Enabled alternative
         Given the query options

features/testbot/basic.feature

@@ -56,7 +56,7 @@ Feature: Basic Routing
 
     Scenario: Two ways connected in a straight line
         Given the node map
-            | a | b | c |
+            | a |   | b |   | c |
 
         And the ways
             | nodes |

features/testbot/bearing_param.feature

@@ -43,8 +43,8 @@ Feature: Bearing parameter
 
     Scenario: Testbot - Initial bearing on split way
         Given the node map
-        | d |  |  |  |  | 1 |  |  |  |  | c |
-        | a |  |  |  |  | 0 |  |  |  |  | b |
+           | g | d |  |  |  |  | 1 |  |  |  |  | c | f |
+           | h | a |  |  |  |  | 0 |  |  |  |  | b | e |
 
         And the ways
             | nodes | oneway |
@@ -52,6 +52,10 @@ Feature: Bearing parameter
             | bc    | yes    |
             | cd    | yes    |
             | da    | yes    |
+            | be    | yes    |
+            | fc    | yes    |
+            | dg    | yes    |
+            | ha    | yes    |
 
         When I route I should get
             | from | to | bearings | route       | bearing       |
@@ -81,31 +85,31 @@ Feature: Bearing parameter
             | f |  |   | e |   |  | d |
 
         And the ways
-            | nodes | oneway |
-            | ia    | yes    |
-            | jb    | yes    |
-            | kc    | yes    |
-            | ld    | yes    |
-            | me    | yes    |
-            | nf    | yes    |
-            | og    | yes    |
-            | ph    | yes    |
-            | ab    | yes    |
-            | bc    | yes    |
-            | cd    | yes    |
-            | de    | yes    |
-            | ef    | yes    |
-            | fg    | yes    |
-            | gh    | yes    |
-            | ha    | yes    |
+            | nodes | oneway | name |
+            | ia    | yes    | ia   |
+            | jb    | yes    | jb   |
+            | kc    | yes    | kc   |
+            | ld    | yes    | ld   |
+            | me    | yes    | me   |
+            | nf    | yes    | nf   |
+            | og    | yes    | og   |
+            | ph    | yes    | ph   |
+            | ab    | yes    | ring |
+            | bc    | yes    | ring |
+            | cd    | yes    | ring |
+            | de    | yes    | ring |
+            | ef    | yes    | ring |
+            | fg    | yes    | ring |
+            | gh    | yes    | ring |
+            | ha    | yes    | ring |
 
         When I route I should get
-            | from | to | bearings | route                         | bearing                       |
-            | 0    | q  | 0 90     | ia,ab,bc,cd,de,ef,fg,gh,ha,ha | 0->0,0->90,90->180,180->180,180->270,270->270,270->0,0->0,0->90,90->0 |
-            | 0    | a  | 45 90    | jb,bc,cd,de,ef,fg,gh,ha,ha    | 0->45,45->180,180->180,180->270,270->270,270->0,0->0,0->90,90->0   |
-            | 0    | q  | 90 90    | kc,cd,de,ef,fg,gh,ha,ha       | 0->90,90->180,180->270,270->270,270->0,0->0,0->90,90->0       |
-            | 0    | a  | 135 90   | ld,de,ef,fg,gh,ha,ha          | 0->135,135->270,270->270,270->0,0->0,0->90,90->0          |
-            | 0    | a  | 180 90   | me,ef,fg,gh,ha,ha             | 0->180,180->270,270->0,0->0,0->90,90->0              |
-            | 0    | a  | 225 90   | nf,fg,gh,ha,ha                | 0->225,225->0,0->0,0->90,90->0                  |
-            | 0    | a  | 270 90   | og,gh,ha,ha                   | 0->270,270->0,0->90,90->0                    |
-            | 0    | a  | 315 90   | ph,ha,ha                      | 0->315,315->90,90->0                      |
+            | from | to | bearings | route                       | bearing                                   |
+            | 0    | q  | 0 90     | ia,ring,ring,ring,ring,ring | 0->0,0->90,180->270,270->0,0->90,90->0    |
+            | 0    | a  | 45 90    | jb,ring,ring,ring,ring,ring | 0->45,45->180,180->270,270->0,0->90,90->0 |
+            | 0    | q  | 90 90    | kc,ring,ring,ring,ring      | 0->90,90->180,270->0,0->90,90->0          |
+            | 0    | a  | 135 90   | ld,ring,ring,ring,ring      | 0->135,135->270,270->0,0->90,90->0        |
+            | 0    | a  | 180 90   | me,ring,ring,ring           | 0->180,180->270,0->90,90->0               |
+            | 0    | a  | 225 90   | nf,ring,ring,ring           | 0->225,225->0,0->90,90->0                 |
+            | 0    | a  | 270 90   | og,ring,ring                | 0->270,270->0,90->0                       |
+            | 0    | a  | 315 90   | ph,ring,ring                | 0->315,315->90,90->0                      |

features/testbot/continue_straight.feature

@@ -3,6 +3,7 @@ Feature: U-turns at via points
 
     Background:
         Given the profile "testbot"
+        Given a grid size of 100 meters
 
     Scenario: Continue straight at waypoints enabled by default
         Given the node map

features/testbot/mode.feature

@@ -11,6 +11,7 @@ Feature: Testbot - Travel mode
 
     Background:
        Given the profile "testbot"
+       Given a grid size of 200 meters
 
     Scenario: Testbot - Always announce mode change
         Given the node map
@@ -72,9 +73,9 @@ Feature: Testbot - Travel mode
             | ab    | steps   |
 
         When I route I should get
-            | from | to | route | modes                 | time    |
-            | 0    | 1  | ab,ab | steps down,steps down | 60s +-1 |
-            | 1    | 0  | ab,ab | steps up,steps up     | 60s +-1 |
+            | from | to | route | modes                 | time     |
+            | 0    | 1  | ab,ab | steps down,steps down | 120s +-1 |
+            | 1    | 0  | ab,ab | steps up,steps up     | 120s +-1 |
 
     @oneway
     Scenario: Testbot - Modes for oneway, different forward/backward speeds

features/testbot/summary.feature

@@ -3,9 +3,10 @@ Feature: Basic Routing
 
     Background:
         Given the profile "testbot"
+        Given a grid size of 200 meters
 
     @smallest
-    Scenario: Checking 
+    Scenario: Checking
         Given the node map
             | a | b | 1 | c | d | e |
 

include/engine/api/json_factory.hpp

@@ -57,6 +57,7 @@ util::json::Object makeGeoJSONGeometry(ForwardIter begin, ForwardIter end)
     {
         geojson.values["type"] = "LineString";
         util::json::Array coordinates;
+        coordinates.values.reserve(num_coordinates);
         std::transform(
             begin, end, std::back_inserter(coordinates.values), &detail::coordinateToLonLat);
         geojson.values["coordinates"] = std::move(coordinates);

include/engine/api/route_api.hpp

@@ -144,6 +144,7 @@ class RouteAPI : public BaseAPI
                 guidance::trimShortSegments(steps, leg_geometry);
                 leg.steps = guidance::postProcess(std::move(steps));
                 leg.steps = guidance::collapseTurns(std::move(leg.steps));
+                leg.steps = guidance::buildIntersections(std::move(leg.steps));
                 leg.steps = guidance::assignRelativeLocations(std::move(leg.steps),
                                                               leg_geometry,
                                                               phantoms.source_phantom,
@@ -172,6 +173,9 @@ class RouteAPI : public BaseAPI
         for (const auto idx : util::irange<std::size_t>(0UL, legs.size()))
         {
             auto &leg_geometry = leg_geometries[idx];
+
+            step_geometries.reserve(step_geometries.size() + legs[idx].steps.size());
+
             std::transform(
                 legs[idx].steps.begin(),
                 legs[idx].steps.end(),
@@ -200,6 +204,11 @@ class RouteAPI : public BaseAPI
                 util::json::Array distances;
                 util::json::Array nodes;
                 auto &leg_geometry = leg_geometries[idx];
+
+                durations.values.reserve(leg_geometry.annotations.size());
+                distances.values.reserve(leg_geometry.annotations.size());
+                nodes.values.reserve(leg_geometry.osm_node_ids.size());
+
                 std::for_each(
                     leg_geometry.annotations.begin(),
                     leg_geometry.annotations.end(),

include/engine/datafacade/internal_datafacade.hpp

@@ -602,7 +602,7 @@ class InternalDataFacade final : public BaseDataFacade
 
     std::string GetPronunciationForID(const unsigned name_id) const override final
     {
-        // We store the pronounciation after the name and destination of a street.
+        // We store the pronunciation after the name and destination of a street.
         // We do this to get around the street length limit of 255 which would hit
         // if we concatenate these. Order (see extractor_callbacks):
         // name (0), destination (1), pronunciation (2)

include/engine/datafacade/shared_datafacade.hpp

@@ -171,13 +171,13 @@ class SharedDataFacade final : public BaseDataFacade
             coordinate_list_ptr,
             data_layout->num_entries[storage::SharedDataLayout::COORDINATE_LIST]);
 
-        auto osmnodeid_list_ptr = data_layout->GetBlockPtr<OSMNodeID>(
+        auto osmnodeid_list_ptr = data_layout->GetBlockPtr<std::uint64_t>(
             shared_memory, storage::SharedDataLayout::OSM_NODE_ID_LIST);
         m_osmnodeid_list.reset(
             osmnodeid_list_ptr,
             data_layout->num_entries[storage::SharedDataLayout::OSM_NODE_ID_LIST]);
-        m_osmnodeid_list.set_number_of_entries(util::PackedVectorCapacity(
-            data_layout->num_entries[storage::SharedDataLayout::OSM_NODE_ID_LIST]));
+        // We (ab)use the number of coordinates here because we know we have the same amount of ids
+        m_osmnodeid_list.set_number_of_entries(data_layout->num_entries[storage::SharedDataLayout::COORDINATE_LIST]);
 
         auto travel_mode_list_ptr = data_layout->GetBlockPtr<extractor::TravelMode>(
             shared_memory, storage::SharedDataLayout::TRAVEL_MODE);
@@ -676,7 +676,7 @@ class SharedDataFacade final : public BaseDataFacade
 
     std::string GetPronunciationForID(const unsigned name_id) const override final
     {
-        // We store the pronounciation after the name and destination of a street.
+        // We store the pronunciation after the name and destination of a street.
         // We do this to get around the street length limit of 255 which would hit
         // if we concatenate these. Order (see extractor_callbacks):
         // name (0), destination (1), pronunciation (2)

include/engine/guidance/assemble_steps.hpp

@@ -133,6 +133,7 @@ std::vector<RouteStep> assembleSteps(const DataFacadeT &facade,
                 intersection.out = bearing_class.findMatchingBearing(bearings.second);
                 intersection.location = facade.GetCoordinateOfNode(path_point.turn_via_node);
                 intersection.bearings.clear();
+                intersection.bearings.reserve(bearing_class.getAvailableBearings().size());
                 std::copy(bearing_class.getAvailableBearings().begin(),
                           bearing_class.getAvailableBearings().end(),
                           std::back_inserter(intersection.bearings));

include/engine/guidance/post_processing.hpp

@@ -37,6 +37,9 @@ std::vector<RouteStep> assignRelativeLocations(std::vector<RouteStep> steps,
                                                const PhantomNode &source_node,
                                                const PhantomNode &target_node);
 
+// collapse suppressed instructions remaining into intersections array
+std::vector<RouteStep> buildIntersections(std::vector<RouteStep> steps);
+
 // remove steps invalidated by post-processing
 std::vector<RouteStep> removeNoTurnInstructions(std::vector<RouteStep> steps);
 

include/extractor/guidance/toolkit.hpp

@@ -280,20 +280,6 @@ inline double getTurnConfidence(const double angle, TurnInstruction instruction)
     return 1.0 - (difference / max_deviation) * (difference / max_deviation);
 }
 
-// swaps left <-> right modifier types
-inline DirectionModifier::Enum mirrorDirectionModifier(const DirectionModifier::Enum modifier)
-{
-    const constexpr DirectionModifier::Enum results[] = {DirectionModifier::UTurn,
-                                                         DirectionModifier::SharpLeft,
-                                                         DirectionModifier::Left,
-                                                         DirectionModifier::SlightLeft,
-                                                         DirectionModifier::Straight,
-                                                         DirectionModifier::SlightRight,
-                                                         DirectionModifier::Right,
-                                                         DirectionModifier::SharpRight};
-    return results[modifier];
-}
-
 inline bool canBeSuppressed(const TurnType::Enum type)
 {
     if (type == TurnType::Turn)

include/util/guidance/toolkit.hpp

@@ -49,6 +49,22 @@ inline extractor::guidance::DirectionModifier::Enum getTurnDirection(const doubl
     return extractor::guidance::DirectionModifier::UTurn;
 }
 
+// swaps left <-> right modifier types
+inline extractor::guidance::DirectionModifier::Enum
+mirrorDirectionModifier(const extractor::guidance::DirectionModifier::Enum modifier)
+{
+    const constexpr extractor::guidance::DirectionModifier::Enum results[] = {
+        extractor::guidance::DirectionModifier::UTurn,
+        extractor::guidance::DirectionModifier::SharpLeft,
+        extractor::guidance::DirectionModifier::Left,
+        extractor::guidance::DirectionModifier::SlightLeft,
+        extractor::guidance::DirectionModifier::Straight,
+        extractor::guidance::DirectionModifier::SlightRight,
+        extractor::guidance::DirectionModifier::Right,
+        extractor::guidance::DirectionModifier::SharpRight};
+    return results[modifier];
+}
+
 } // namespace guidance
 } // namespace util
 } // namespace osrm

include/util/packed_vector.hpp

@@ -12,26 +12,6 @@ namespace osrm
 namespace util
 {
 
-const constexpr std::size_t BITSIZE = 33;
-const constexpr std::size_t ELEMSIZE = 64;
-const constexpr std::size_t PACKSIZE = BITSIZE * ELEMSIZE;
-
-/**
- * Returns the size of the packed vector datastructure with `elements` packed elements (the size of
- * its underlying vector)
- */
-inline std::size_t PackedVectorSize(std::size_t elements)
-{
-    return ceil(float(elements) / ELEMSIZE) * BITSIZE;
-};
-
-/**
- * Returns the capacity of a packed vector with underlying vector size `vec_size`
- */
-inline std::size_t PackedVectorCapacity(std::size_t vec_size)
-{
-    return floor(float(vec_size) / BITSIZE) * ELEMSIZE;
-}
 
 /**
  * Since OSM node IDs are (at the time of writing) not quite yet overflowing 32 bits, and
@@ -41,9 +21,23 @@ inline std::size_t PackedVectorCapacity(std::size_t vec_size)
  * NOTE: this type is templated for future use, but will require a slight refactor to
  * configure BITSIZE and ELEMSIZE
  */
-template <typename T, bool UseSharedMemory> class PackedVector
+template <typename T, bool UseSharedMemory=false> class PackedVector
 {
+    static const constexpr std::size_t BITSIZE = 33;
+    static const constexpr std::size_t ELEMSIZE = 64;
+    static const constexpr std::size_t PACKSIZE = BITSIZE * ELEMSIZE;
+
   public:
+
+    /**
+     * Returns the size of the packed vector datastructure with `elements` packed elements (the size of
+     * its underlying uint64 vector)
+     */
+    inline static std::size_t elements_to_blocks(std::size_t elements)
+    {
+        return std::ceil(static_cast<double>(elements) * BITSIZE / ELEMSIZE);
+    }
+
     void push_back(T incoming_node_id)
     {
         std::uint64_t node_id = static_cast<std::uint64_t>(incoming_node_id);
@@ -130,14 +124,14 @@ template <typename T, bool UseSharedMemory> class PackedVector
     template <bool enabled = UseSharedMemory>
     void reserve(typename std::enable_if<!enabled, std::size_t>::type capacity)
     {
-        vec.reserve(PackedVectorSize(capacity));
+        vec.reserve(elements_to_blocks(capacity));
     }
 
     template <bool enabled = UseSharedMemory>
-    void reset(typename std::enable_if<enabled, T>::type *ptr,
+    void reset(typename std::enable_if<enabled, std::uint64_t>::type *ptr,
                typename std::enable_if<enabled, std::size_t>::type size)
     {
-        vec.reset(reinterpret_cast<std::uint64_t *>(ptr), size);
+        vec.reset(ptr, size);
     }
 
     template <bool enabled = UseSharedMemory>
@@ -146,7 +140,10 @@ template <typename T, bool UseSharedMemory> class PackedVector
         num_elements = count;
     }
 
-    std::size_t capacity() const { return PackedVectorCapacity(vec.capacity()); }
+    std::size_t capacity() const
+    {
+        return std::floor(static_cast<double>(vec.capacity()) * ELEMSIZE / BITSIZE);
+    }
 
   private:
     typename util::ShM<std::uint64_t, UseSharedMemory>::vector vec;

src/engine/guidance/post_processing.cpp

@@ -1,5 +1,5 @@
-#include "engine/guidance/post_processing.hpp"
 #include "extractor/guidance/turn_instruction.hpp"
+#include "engine/guidance/post_processing.hpp"
 
 #include "engine/guidance/assemble_steps.hpp"
 #include "engine/guidance/toolkit.hpp"
@@ -31,35 +31,89 @@ namespace guidance
 
 namespace
 {
+const constexpr double MAX_COLLAPSE_DISTANCE = 25;
+
+inline bool choiceless(const RouteStep &step, const RouteStep &previous)
+{
+    // if the next turn is choiceless, we consider longer turn roads collapsable than usually
+    // accepted. We might need to improve this to find out whether we merge onto a through-street.
+    return previous.distance < 3 * MAX_COLLAPSE_DISTANCE &&
+           1 >= std::count(step.intersections.front().entry.begin(),
+                           step.intersections.front().entry.end(),
+                           true);
+}
+
+// List of types that can be collapsed, if all other restrictions pass
+bool isCollapsableInstruction(const TurnInstruction instruction)
+{
+    return instruction.type == TurnType::NewName ||
+           (instruction.type == TurnType::Suppressed &&
+            instruction.direction_modifier == DirectionModifier::Straight) ||
+           (instruction.type == TurnType::Turn &&
+            instruction.direction_modifier == DirectionModifier::Straight) ||
+           (instruction.type == TurnType::Continue &&
+            instruction.direction_modifier == DirectionModifier::Straight) ||
+           (instruction.type == TurnType::Merge);
+}
+
+// A check whether two instructions can be treated as one. This is only the case for very short
+// maneuvers that can, in some form, be seen as one. The additional in_step is to find out about
+// a possible u-turn.
+bool collapsable(const RouteStep &step)
+{
+
+    return step.distance < MAX_COLLAPSE_DISTANCE &&
+           isCollapsableInstruction(step.maneuver.instruction);
+}
+
+bool compatible(const RouteStep &lhs, const RouteStep &rhs) { return lhs.mode == rhs.mode; }
+
+double nameSegmentLength(std::size_t at, const std::vector<RouteStep> &steps)
+{
+    double result = steps[at].distance;
+    while (at + 1 < steps.size() && steps[at + 1].name_id == steps[at].name_id)
+    {
+        ++at;
+        result += steps[at].distance;
+    }
+
+    return result;
+}
 
 // invalidate a step and set its content to nothing
 void invalidateStep(RouteStep &step) { step = getInvalidRouteStep(); }
 
+void print(const RouteStep &step)
+{
+    std::cout << static_cast<int>(step.maneuver.instruction.type) << " "
+              << static_cast<int>(step.maneuver.instruction.direction_modifier) << "  "
+              << static_cast<int>(step.maneuver.waypoint_type) << " Duration: " << step.duration
+              << " Distance: " << step.distance << " Geometry: " << step.geometry_begin << " "
+              << step.geometry_end << " exit: " << step.maneuver.exit
+              << " Intersections: " << step.intersections.size() << " [";
+
+    for (const auto &intersection : step.intersections)
+    {
+        std::cout << "(bearings:";
+        for (auto bearing : intersection.bearings)
+            std::cout << " " << bearing;
+        std::cout << ", entry: ";
+        for (auto entry : intersection.entry)
+            std::cout << " " << entry;
+        std::cout << ")";
+    }
+    std::cout << "] name[" << step.name_id << "]: " << step.name;
+}
+
 void print(const std::vector<RouteStep> &steps)
 {
     std::cout << "Path\n";
     int segment = 0;
     for (const auto &step : steps)
     {
-        std::cout << "\t[" << ++segment << "]: " << static_cast<int>(step.maneuver.instruction.type)
-                  << " " << static_cast<int>(step.maneuver.instruction.direction_modifier) << "  "
-                  << static_cast<int>(step.maneuver.waypoint_type) << " Duration: " << step.duration
-                  << " Distance: " << step.distance << " Geometry: " << step.geometry_begin << " "
-                  << step.geometry_end << " exit: " << step.maneuver.exit
-                  << " Intersections: " << step.intersections.size() << " [";
-
-        for (const auto &intersection : step.intersections)
-        {
-            std::cout << "(bearings:";
-            for (auto bearing : intersection.bearings)
-                std::cout << " " << bearing;
-            std::cout << ", entry: ";
-            for (auto entry : intersection.entry)
-                std::cout << " " << entry;
-            std::cout << ")";
-        }
-
-        std::cout << "] name[" << step.name_id << "]: " << step.name << std::endl;
+        std::cout << "\t[" << segment++ << "]: ";
+        print(step);
+        std::cout << std::endl;
     }
 }
 
@@ -327,15 +381,6 @@ RouteStep elongate(RouteStep step, const RouteStep &by_step)
     return step;
 }
 
-// A check whether two instructions can be treated as one. This is only the case for very short
-// maneuvers that can, in some form, be seen as one. The additional in_step is to find out about
-// a possible u-turn.
-bool collapsable(const RouteStep &step)
-{
-    const constexpr double MAX_COLLAPSE_DISTANCE = 25;
-    return step.distance < MAX_COLLAPSE_DISTANCE;
-}
-
 void collapseTurnAt(std::vector<RouteStep> &steps,
                     const std::size_t two_back_index,
                     const std::size_t one_back_index,
@@ -353,46 +398,81 @@ void collapseTurnAt(std::vector<RouteStep> &steps,
     };
 
     BOOST_ASSERT(!one_back_step.intersections.empty() && !current_step.intersections.empty());
-    const auto isCollapsableInstruction = [](const TurnInstruction instruction) {
-        return instruction.type == TurnType::NewName ||
-               (instruction.type == TurnType::Turn &&
-                instruction.direction_modifier == DirectionModifier::Straight);
-    };
     // Very Short New Name
-    if (isCollapsableInstruction(one_back_step.maneuver.instruction))
+    if (((collapsable(one_back_step) ||
+          (isCollapsableInstruction(one_back_step.maneuver.instruction) &&
+           choiceless(current_step, one_back_step))) &&
+         !(one_back_step.maneuver.instruction.type == TurnType::Merge)))
+    // the check against merge is a workaround for motorways
     {
         BOOST_ASSERT(two_back_index < steps.size());
-        if (one_back_step.mode == steps[two_back_index].mode)
+        if (compatible(one_back_step, steps[two_back_index]))
         {
+            BOOST_ASSERT(!one_back_step.intersections.empty());
+            if (TurnType::Continue == current_step.maneuver.instruction.type ||
+                TurnType::Suppressed == current_step.maneuver.instruction.type)
+                steps[step_index].maneuver.instruction.type = TurnType::Turn;
+            else if (TurnType::Merge == current_step.maneuver.instruction.type)
+            {
+                steps[step_index].maneuver.instruction.direction_modifier =
+                    util::guidance::mirrorDirectionModifier(
+                        steps[step_index].maneuver.instruction.direction_modifier);
+                steps[step_index].maneuver.instruction.type = TurnType::Turn;
+            }
+            else if (TurnType::NewName == current_step.maneuver.instruction.type &&
+                     current_step.maneuver.instruction.direction_modifier !=
+                         DirectionModifier::Straight &&
+                     one_back_step.intersections.front().bearings.size() > 2)
+                steps[step_index].maneuver.instruction.type = TurnType::Turn;
+
             steps[two_back_index] = elongate(std::move(steps[two_back_index]), one_back_step);
             // If the previous instruction asked to continue, the name change will have to
             // be changed into a turn
             invalidateStep(steps[one_back_index]);
-
-            if (TurnType::Continue == current_step.maneuver.instruction.type)
-                steps[step_index].maneuver.instruction.type = TurnType::Turn;
         }
     }
     // very short segment after turn
-    else if (isCollapsableInstruction(current_step.maneuver.instruction))
+    else if (one_back_step.distance <= MAX_COLLAPSE_DISTANCE &&
+             isCollapsableInstruction(current_step.maneuver.instruction))
     {
-        if (one_back_step.mode == current_step.mode)
+        if (compatible(one_back_step, current_step))
         {
-            steps[step_index] = elongate(std::move(steps[step_index]), steps[one_back_index]);
-            invalidateStep(steps[one_back_index]);
-
-            if (TurnType::Continue == current_step.maneuver.instruction.type)
+            steps[one_back_index] = elongate(std::move(steps[one_back_index]), steps[step_index]);
+            if ((TurnType::Continue == one_back_step.maneuver.instruction.type ||
+                 TurnType::Suppressed == one_back_step.maneuver.instruction.type) &&
+                current_step.name_id != steps[two_back_index].name_id)
             {
-                steps[step_index].maneuver.instruction.type = TurnType::Turn;
+                steps[one_back_index].maneuver.instruction.type = TurnType::Turn;
             }
+            else if (TurnType::Turn == one_back_step.maneuver.instruction.type &&
+                     current_step.name_id == steps[two_back_index].name_id)
+            {
+                steps[one_back_index].maneuver.instruction.type = TurnType::Continue;
+            }
+            else if (TurnType::Merge == one_back_step.maneuver.instruction.type &&
+                     current_step.maneuver.instruction.type !=
+                         TurnType::Suppressed) // This suppressed is a check for highways. We might
+                                               // need a highway-suppressed to get the turn onto a
+                                               // highway...
+            {
+                steps[one_back_index].maneuver.instruction.direction_modifier =
+                    util::guidance::mirrorDirectionModifier(
+                        steps[one_back_index].maneuver.instruction.direction_modifier);
+            }
+            steps[one_back_index].name = current_step.name;
+            steps[one_back_index].name_id = current_step.name_id;
+            invalidateStep(steps[step_index]);
         }
     }
     // Potential U-Turn
-    else if (bearingsAreReversed(util::bearing::reverseBearing(
+    else if ((one_back_step.distance <= MAX_COLLAPSE_DISTANCE ||
+              choiceless(current_step, one_back_step)) &&
+             bearingsAreReversed(util::bearing::reverseBearing(
                                      one_back_step.intersections.front()
                                          .bearings[one_back_step.intersections.front().in]),
                                  current_step.intersections.front()
-                                     .bearings[current_step.intersections.front().out]))
+                                     .bearings[current_step.intersections.front().out]) &&
+             compatible(one_back_step, current_step))
 
     {
         BOOST_ASSERT(two_back_index < steps.size());
@@ -405,8 +485,7 @@ void collapseTurnAt(std::vector<RouteStep> &steps,
             (step_index + 1 < steps.size()) &&
             isCollapsableInstruction(steps[step_index + 1].maneuver.instruction);
         const bool u_turn_with_name_change =
-            collapsable(current_step) && continues_with_name_change &&
-            steps[step_index + 1].name == steps[two_back_index].name;
+            continues_with_name_change && steps[step_index + 1].name == steps[two_back_index].name;
 
         if (direct_u_turn || u_turn_with_name_change)
         {
@@ -471,6 +550,7 @@ std::vector<RouteStep> removeNoTurnInstructions(std::vector<RouteStep> steps)
 // that we come across.
 std::vector<RouteStep> postProcess(std::vector<RouteStep> steps)
 {
+    print(steps);
     // the steps should always include the first/last step in form of a location
     BOOST_ASSERT(steps.size() >= 2);
     if (steps.size() == 2)
@@ -484,14 +564,12 @@ std::vector<RouteStep> postProcess(std::vector<RouteStep> steps)
     // required. We might end up with only one of them (e.g. starting within a roundabout)
     // or having a via-point in the roundabout.
     // In this case, exits are numbered from the start of the lag.
-    std::size_t last_valid_instruction = 0;
     for (std::size_t step_index = 0; step_index < steps.size(); ++step_index)
     {
         auto &step = steps[step_index];
         const auto instruction = step.maneuver.instruction;
         if (entersRoundabout(instruction))
         {
-            last_valid_instruction = step_index;
             has_entered_roundabout = setUpRoundabout(step);
 
             if (has_entered_roundabout && step_index + 1 < steps.size())
@@ -512,24 +590,11 @@ std::vector<RouteStep> postProcess(std::vector<RouteStep> steps)
                 // in case the we are not on a roundabout, the very first instruction
                 // after the depart will be transformed into a roundabout and become
                 // the first valid instruction
-                last_valid_instruction = 1;
             }
             closeOffRoundabout(has_entered_roundabout, steps, step_index);
             has_entered_roundabout = false;
             on_roundabout = false;
         }
-        else if (instruction.type == TurnType::Suppressed)
-        {
-            // count intersections. We cannot use exit, since intersections can follow directly
-            // after a roundabout
-            steps[last_valid_instruction] = elongate(steps[last_valid_instruction], step);
-            step.maneuver.instruction = TurnInstruction::NO_TURN();
-        }
-        else if (!isSilent(instruction))
-        {
-            // Remember the last non silent instruction
-            last_valid_instruction = step_index;
-        }
     }
 
     // unterminated roundabout
@@ -564,58 +629,59 @@ std::vector<RouteStep> collapseTurns(std::vector<RouteStep> steps)
         BOOST_ASSERT(index > 0);
         BOOST_ASSERT(index < steps.size());
         --index;
-        while (index > 0 && steps[index].maneuver.instruction == TurnInstruction::NO_TURN())
+        while (index > 0 && steps[index].maneuver.instruction.type == TurnType::NoTurn)
             --index;
 
         return index;
     };
 
-    // Check for an initial unwanted new-name
-    {
-        const auto &current_step = steps[1];
-        if (TurnType::NewName == current_step.maneuver.instruction.type &&
-            current_step.name == steps[0].name)
+    const auto getPreviousNameIndex = [&steps](std::size_t index) {
+        BOOST_ASSERT(index > 0);
+        BOOST_ASSERT(index < steps.size());
+        --index; // make sure to skip the current name
+        while (index > 0 && steps[index].name_id == EMPTY_NAMEID)
         {
-            steps[0] = elongate(std::move(steps[0]), steps[1]);
-            invalidateStep(steps[1]);
+            --index;
         }
-    }
-    const auto isCollapsableInstruction = [](const TurnInstruction instruction) {
-        return instruction.type == TurnType::NewName ||
-               (instruction.type == TurnType::Turn &&
-                instruction.direction_modifier == DirectionModifier::Straight);
+        return index;
     };
 
-    // Special case handling: if the phantomnode landed on a sliproad, we
-    // change this into a 'turn' instruction.  Sliproads are small ramps
-    // between roads, not ramps.
-    if (steps.size() >= 3 &&
-        steps[steps.size() - 2].maneuver.instruction.type == TurnType::Sliproad)
-    {
-        steps[steps.size() - 2].maneuver.instruction.type = TurnType::Turn;
-    }
+    // a series of turns is only possible to collapse if its only name changes and suppressed turns.
+    const auto canCollapseAll = [&steps](std::size_t index, const std::size_t end_index) {
+        BOOST_ASSERT(end_index <= steps.size());
+        for (; index < end_index; ++index)
+        {
+            if (steps[index].maneuver.instruction.type != TurnType::Suppressed &&
+                steps[index].maneuver.instruction.type != TurnType::NewName)
+                return false;
+        }
+        return true;
+    };
 
     // first and last instructions are waypoints that cannot be collapsed
-    for (std::size_t step_index = 2; step_index < steps.size(); ++step_index)
+    for (std::size_t step_index = 1; step_index + 1 < steps.size(); ++step_index)
     {
         const auto &current_step = steps[step_index];
+        if( current_step.maneuver.instruction.type == TurnType::NoTurn )
+            continue;
         const auto one_back_index = getPreviousIndex(step_index);
         BOOST_ASSERT(one_back_index < steps.size());
 
-        // cannot collapse the depart instruction
-        if (one_back_index == 0 || current_step.maneuver.instruction == TurnInstruction::NO_TURN())
-            continue;
-
         const auto &one_back_step = steps[one_back_index];
-        const auto two_back_index = getPreviousIndex(one_back_index);
-        BOOST_ASSERT(two_back_index < steps.size());
+        // how long has a name change to be so that we announce it, even as a bridge?
+        const constexpr auto name_segment_cutoff_length = 100;
+        const auto isBasicNameChange = [](const RouteStep &step) {
+            return step.intersections.size() == 1 &&
+                   step.intersections.front().bearings.size() == 2 &&
+                   DirectionModifier::Straight == step.maneuver.instruction.direction_modifier;
+        };
 
-        // Handle sliproads from motorways in urban areas
+        // Handle sliproads from motorways in urban areas, save from modifying depart, since
+        // TurnType::Sliproad != TurnType::NoTurn
         if (one_back_step.maneuver.instruction.type == TurnType::Sliproad)
         {
-
             // Handle possible u-turns between highways that look like slip-roads
-            if (steps[two_back_index].name_id == steps[step_index].name_id &&
+            if (steps[getPreviousIndex(one_back_index)].name_id == steps[step_index].name_id &&
                 steps[step_index].name_id != EMPTY_NAMEID)
             {
                 steps[one_back_index].maneuver.instruction.type = TurnType::Continue;
@@ -624,42 +690,57 @@ std::vector<RouteStep> collapseTurns(std::vector<RouteStep> steps)
             {
                 steps[one_back_index].maneuver.instruction.type = TurnType::Turn;
             }
-            steps[one_back_index] = elongate(std::move(steps[one_back_index]), steps[step_index]);
-            steps[one_back_index].name_id = steps[step_index].name_id;
-            steps[one_back_index].name = steps[step_index].name;
+            if (compatible(one_back_step, current_step))
+            {
+                steps[one_back_index] =
+                    elongate(std::move(steps[one_back_index]), steps[step_index]);
+                steps[one_back_index].name_id = steps[step_index].name_id;
+                steps[one_back_index].name = steps[step_index].name;
 
-            const auto exit_intersection = steps[step_index].intersections.front();
-            const auto exit_bearing = exit_intersection.bearings[exit_intersection.out];
+                const auto exit_intersection = steps[step_index].intersections.front();
+                const auto exit_bearing = exit_intersection.bearings[exit_intersection.out];
 
-            const auto entry_intersection = steps[one_back_index].intersections.front();
-            const auto entry_bearing = entry_intersection.bearings[entry_intersection.in];
+                const auto entry_intersection = steps[one_back_index].intersections.front();
+                const auto entry_bearing = entry_intersection.bearings[entry_intersection.in];
 
-            const double angle =
-                turn_angle(util::bearing::reverseBearing(entry_bearing), exit_bearing);
-            steps[one_back_index].maneuver.instruction.direction_modifier =
-                ::osrm::util::guidance::getTurnDirection(angle);
-            invalidateStep(steps[step_index]);
+                const double angle =
+                    turn_angle(util::bearing::reverseBearing(entry_bearing), exit_bearing);
+                steps[one_back_index].maneuver.instruction.direction_modifier =
+                    ::osrm::util::guidance::getTurnDirection(angle);
+                invalidateStep(steps[step_index]);
+            }
         }
         // Due to empty segments, we can get name-changes from A->A
         // These have to be handled in post-processing
         else if (isCollapsableInstruction(current_step.maneuver.instruction) &&
-                 current_step.name == steps[one_back_index].name)
+                 current_step.maneuver.instruction.type != TurnType::Suppressed &&
+                 steps[getPreviousNameIndex(step_index)].name == current_step.name &&
+                 canCollapseAll(getPreviousNameIndex(step_index) + 1, step_index + 1))
         {
-            steps[one_back_index] = elongate(std::move(steps[one_back_index]), steps[step_index]);
-            invalidateStep(steps[step_index]);
+            BOOST_ASSERT(step_index > 0);
+            const std::size_t last_available_name_index = getPreviousNameIndex(step_index);
+
+            for (std::size_t index = last_available_name_index + 1; index <= step_index; ++index)
+            {
+                steps[last_available_name_index] =
+                    elongate(std::move(steps[last_available_name_index]), steps[index]);
+                invalidateStep(steps[index]);
+            }
         }
         // If we look at two consecutive name changes, we can check for a name oszillation.
         // A name oszillation changes from name A shortly to name B and back to A.
         // In these cases, the name change will be suppressed.
-        else if (isCollapsableInstruction(current_step.maneuver.instruction) &&
+        else if (one_back_index > 0 && compatible(current_step, one_back_step) &&
+                 isCollapsableInstruction(current_step.maneuver.instruction) &&
                  isCollapsableInstruction(one_back_step.maneuver.instruction))
         {
-            // valid due to step_index starting at 2
+            const auto two_back_index = getPreviousIndex(one_back_index);
+            BOOST_ASSERT(two_back_index < steps.size());
+            // valid, since one_back is collapsable:
             const auto &coming_from_name = steps[two_back_index].name;
             if (current_step.name == coming_from_name)
             {
-                if (current_step.mode == one_back_step.mode &&
-                    one_back_step.mode == steps[two_back_index].mode)
+                if (compatible(one_back_step, steps[two_back_index]))
                 {
                     steps[two_back_index] =
                         elongate(elongate(std::move(steps[two_back_index]), steps[one_back_index]),
@@ -670,14 +751,46 @@ std::vector<RouteStep> collapseTurns(std::vector<RouteStep> steps)
                 // TODO discuss: we could think about changing the new-name to a pure notification
                 // about mode changes
             }
+            else if (nameSegmentLength(one_back_index, steps) < name_segment_cutoff_length &&
+                     isBasicNameChange(one_back_step) && isBasicNameChange(current_step))
+            {
+                steps[two_back_index] =
+                    elongate(std::move(steps[two_back_index]), steps[one_back_index]);
+                invalidateStep(steps[one_back_index]);
+                if (nameSegmentLength(step_index, steps) < name_segment_cutoff_length)
+                {
+                    steps[two_back_index] =
+                        elongate(std::move(steps[two_back_index]), steps[step_index]);
+                    invalidateStep(steps[step_index]);
+                }
+            }
+            else if (choiceless(current_step, one_back_step) ||
+                     one_back_step.distance <= MAX_COLLAPSE_DISTANCE)
+            {
+                // check for one of the multiple collapse scenarios and, if possible, collapse the
+                // turn
+                const auto two_back_index = getPreviousIndex(one_back_index);
+                BOOST_ASSERT(two_back_index < steps.size());
+                collapseTurnAt(steps, two_back_index, one_back_index, step_index);
+            }
         }
-        else if (collapsable(one_back_step))
+        else if (one_back_index > 0 && (one_back_step.distance <= MAX_COLLAPSE_DISTANCE ||
+                                        choiceless(current_step, one_back_step)))
         {
             // check for one of the multiple collapse scenarios and, if possible, collapse the turn
+            const auto two_back_index = getPreviousIndex(one_back_index);
+            BOOST_ASSERT(two_back_index < steps.size());
             collapseTurnAt(steps, two_back_index, one_back_index, step_index);
         }
     }
 
+    // handle final sliproad
+    if (steps.size() >= 3 &&
+        steps[steps.size() - 2].maneuver.instruction.type == TurnType::Sliproad)
+    {
+        steps[steps.size() - 2].maneuver.instruction.type = TurnType::Turn;
+    }
+
     BOOST_ASSERT(steps.front().intersections.size() >= 1);
     BOOST_ASSERT(steps.front().intersections.front().bearings.size() == 1);
     BOOST_ASSERT(steps.front().intersections.front().entry.size() == 1);
@@ -700,7 +813,6 @@ std::vector<RouteStep> collapseTurns(std::vector<RouteStep> steps)
 // usually not be as relevant.
 void trimShortSegments(std::vector<RouteStep> &steps, LegGeometry &geometry)
 {
-
     if (steps.size() < 2 || geometry.locations.size() <= 2)
         return;
 
@@ -955,6 +1067,29 @@ LegGeometry resyncGeometry(LegGeometry leg_geometry, const std::vector<RouteStep
     return leg_geometry;
 }
 
+std::vector<RouteStep> buildIntersections(std::vector<RouteStep> steps)
+{
+    std::size_t last_valid_instruction = 0;
+    for (std::size_t step_index = 0; step_index < steps.size(); ++step_index)
+    {
+        auto &step = steps[step_index];
+        const auto instruction = step.maneuver.instruction;
+        if (instruction.type == TurnType::Suppressed)
+        {
+            // count intersections. We cannot use exit, since intersections can follow directly
+            // after a roundabout
+            steps[last_valid_instruction] = elongate(steps[last_valid_instruction], step);
+            step.maneuver.instruction = TurnInstruction::NO_TURN();
+        }
+        else if (!isSilent(instruction))
+        {
+            // Remember the last non silent instruction
+            last_valid_instruction = step_index;
+        }
+    }
+    return removeNoTurnInstructions(std::move(steps));
+}
+
 } // namespace guidance
 } // namespace engine
 } // namespace osrm

src/engine/plugins/tile.cpp

@@ -184,6 +184,8 @@ Status TilePlugin::HandleRequest(const api::TileParameters &parameters, std::str
     std::vector<int> used_weights;
     std::unordered_map<int, std::size_t> weight_offsets;
     uint8_t max_datasource_id = 0;
+    std::vector<std::string> names;
+    std::unordered_map<std::string, std::size_t> name_offsets;
 
     // Loop over all edges once to tally up all the attributes we'll need.
     // We need to do this so that we know the attribute offsets to use
@@ -237,6 +239,14 @@ Status TilePlugin::HandleRequest(const api::TileParameters &parameters, std::str
         // data to the layer attribute values
         max_datasource_id = std::max(max_datasource_id, forward_datasource);
         max_datasource_id = std::max(max_datasource_id, reverse_datasource);
+
+        std::string name = facade.GetNameForID(edge.name_id);
+
+        if (name_offsets.find(name) == name_offsets.end())
+        {
+          names.push_back(name);
+          name_offsets[name] = names.size() - 1;
+        }
     }
 
     // TODO: extract speed values for compressed and uncompressed geometries
@@ -279,6 +289,8 @@ Status TilePlugin::HandleRequest(const api::TileParameters &parameters, std::str
                 uint8_t forward_datasource = 0;
                 uint8_t reverse_datasource = 0;
 
+                std::string name = facade.GetNameForID(edge.name_id);
+
                 if (edge.forward_packed_geometry_id != SPECIAL_EDGEID)
                 {
                     std::vector<EdgeWeight> forward_weight_vector;
@@ -316,11 +328,12 @@ Status TilePlugin::HandleRequest(const api::TileParameters &parameters, std::str
                 max_datasource_id = std::max(max_datasource_id, forward_datasource);
                 max_datasource_id = std::max(max_datasource_id, reverse_datasource);
 
-                const auto encode_tile_line = [&layer_writer, &edge, &id, &max_datasource_id](
+                const auto encode_tile_line = [&layer_writer, &edge, &id, &max_datasource_id, &used_weights](
                     const detail::FixedLine &tile_line,
                     const std::uint32_t speed_kmh,
                     const std::size_t duration,
                     const std::uint8_t datasource,
+                    const std::size_t name,
                     std::int32_t &start_x,
                     std::int32_t &start_y) {
                     // Here, we save the two attributes for our feature: the speed and the
@@ -356,6 +369,10 @@ Status TilePlugin::HandleRequest(const api::TileParameters &parameters, std::str
                         field.add_element(3);                // "duration" tag key offset
                         field.add_element(130 + max_datasource_id + 1 +
                                           duration); // duration value offset
+                        field.add_element(4); // "name" tag key offset
+
+                        field.add_element(130 + max_datasource_id + 1 +
+                                          used_weights.size() + name); // name value offset
                     }
                     {
 
@@ -383,6 +400,7 @@ Status TilePlugin::HandleRequest(const api::TileParameters &parameters, std::str
                                          speed_kmh,
                                          weight_offsets[forward_weight],
                                          forward_datasource,
+                                         name_offsets[name],
                                          start_x,
                                          start_y);
                     }
@@ -406,6 +424,7 @@ Status TilePlugin::HandleRequest(const api::TileParameters &parameters, std::str
                                          speed_kmh,
                                          weight_offsets[reverse_weight],
                                          reverse_datasource,
+                                         name_offsets[name],
                                          start_x,
                                          start_y);
                     }
@@ -420,6 +439,7 @@ Status TilePlugin::HandleRequest(const api::TileParameters &parameters, std::str
         layer_writer.add_string(util::vector_tile::KEY_TAG, "is_small");
         layer_writer.add_string(util::vector_tile::KEY_TAG, "datasource");
         layer_writer.add_string(util::vector_tile::KEY_TAG, "duration");
+        layer_writer.add_string(util::vector_tile::KEY_TAG, "name");
 
         // Now, we write out the possible speed value arrays and possible is_tiny
         // values.  Field type 4 is the "values" field.  It's a variable type field,
@@ -458,6 +478,14 @@ Status TilePlugin::HandleRequest(const api::TileParameters &parameters, std::str
             // to seconds with a simple /10 for display
             values_writer.add_double(util::vector_tile::VARIANT_TYPE_DOUBLE, weight / 10.);
         }
+
+        for (const auto& name : names)
+        {
+            // Writing field type 4 == variant type
+            protozero::pbf_writer values_writer(layer_writer, util::vector_tile::VARIANT_TAG);
+            // Attribute value 1 == string type
+            values_writer.add_string(util::vector_tile::VARIANT_TYPE_STRING, name);
+        }
     }
 
     return Status::Ok;

src/extractor/extraction_containers.cpp

@@ -47,7 +47,9 @@ ExtractionContainers::ExtractionContainers()
 {
     // Check if stxxl can be instantiated
     stxxl::vector<unsigned> dummy_vector;
-    // Insert the empty string, it has no data and is zero length
+    // Insert three empty strings for name, destination and pronunciation
+    name_lengths.push_back(0);
+    name_lengths.push_back(0);
     name_lengths.push_back(0);
 }
 

src/extractor/extractor_callbacks.cpp

@@ -27,6 +27,7 @@ namespace extractor
 ExtractorCallbacks::ExtractorCallbacks(ExtractionContainers &extraction_containers)
     : external_memory(extraction_containers)
 {
+    // we reserved 0, 1, 2 for the empty case
     string_map[MapKey("", "")] = 0;
 }
 
@@ -192,6 +193,9 @@ void ExtractorCallbacks::ProcessWay(const osmium::Way &input_way, const Extracti
                             ((parsed_way.forward_speed != parsed_way.backward_speed) ||
                              (parsed_way.forward_travel_mode != parsed_way.backward_travel_mode));
 
+    external_memory.used_node_id_list.reserve(external_memory.used_node_id_list.size() +
+                                              input_way.nodes().size());
+
     std::transform(input_way.nodes().begin(),
                    input_way.nodes().end(),
                    std::back_inserter(external_memory.used_node_id_list),

src/extractor/guidance/intersection_generator.cpp

@@ -240,14 +240,16 @@ Intersection IntersectionGenerator::mergeSegregatedRoads(Intersection intersecti
 
         if (is_connected_to_roundabout)
         {
-            // We are merging a u-turn against the direction of a roundabout
-            //
-            //    -----------> roundabout
-            //       /    \
-            //    out      in
-            //
-            // These cases have to be disabled, even if they are not forbidden specifically by a
-            // relation
+            /*
+             * We are merging a u-turn against the direction of a roundabout
+             *
+             *     -----------> roundabout
+             *        /    \
+             *     out      in
+             *
+             * These cases have to be disabled, even if they are not forbidden specifically by a
+             * relation
+             */
             intersection[0].entry_allowed = false;
         }
 

src/extractor/guidance/motorway_handler.cpp

@@ -385,7 +385,7 @@ Intersection MotorwayHandler::fromRamp(const EdgeID via_eid, Intersection inters
                 {
                     // circular order indicates a merge to the left (0-3 onto 4
                     if (angularDeviation(intersection[1].turn.angle, STRAIGHT_ANGLE) <
-                        NARROW_TURN_ANGLE)
+                        2*NARROW_TURN_ANGLE)
                         intersection[1].turn.instruction = {TurnType::Merge,
                                                             DirectionModifier::SlightLeft};
                     else // fallback
@@ -407,12 +407,12 @@ Intersection MotorwayHandler::fromRamp(const EdgeID via_eid, Intersection inters
                 if (detail::isMotorwayClass(intersection[2].turn.eid, node_based_graph) &&
                     node_based_graph.GetEdgeData(intersection[1].turn.eid).name_id !=
                         EMPTY_NAMEID &&
-                    node_based_graph.GetEdgeData(intersection[1].turn.eid).name_id ==
-                        node_based_graph.GetEdgeData(intersection[0].turn.eid).name_id)
+                    node_based_graph.GetEdgeData(intersection[2].turn.eid).name_id ==
+                        node_based_graph.GetEdgeData(intersection[1].turn.eid).name_id)
                 {
                     // circular order (5-0) onto 4
                     if (angularDeviation(intersection[2].turn.angle, STRAIGHT_ANGLE) <
-                        NARROW_TURN_ANGLE)
+                        2 * NARROW_TURN_ANGLE)
                         intersection[2].turn.instruction = {TurnType::Merge,
                                                             DirectionModifier::SlightRight};
                     else // fallback

src/extractor/guidance/turn_analysis.cpp

@@ -1,5 +1,5 @@
-#include "extractor/guidance/turn_analysis.hpp"
 #include "extractor/guidance/constants.hpp"
+#include "extractor/guidance/turn_analysis.hpp"
 
 #include "util/coordinate.hpp"
 #include "util/coordinate_calculation.hpp"
@@ -127,15 +127,15 @@ Intersection TurnAnalysis::handleSliproads(const EdgeID source_edge_id,
     auto intersection_node_id = node_based_graph.GetTarget(source_edge_id);
 
     const auto linkTest = [this](const ConnectedRoad &road) {
-        return isLinkClass(
-                   node_based_graph.GetEdgeData(road.turn.eid).road_classification.road_class) &&
-               road.entry_allowed &&
-               angularDeviation(road.turn.angle, STRAIGHT_ANGLE) < NARROW_TURN_ANGLE;
+        return // isLinkClass(
+            //    node_based_graph.GetEdgeData(road.turn.eid).road_classification.road_class) &&
+            !node_based_graph.GetEdgeData(road.turn.eid).roundabout && road.entry_allowed &&
+            angularDeviation(road.turn.angle, STRAIGHT_ANGLE) <= 2 * NARROW_TURN_ANGLE;
     };
 
-    bool hasRamp =
+    bool hasNarrow =
         std::find_if(intersection.begin(), intersection.end(), linkTest) != intersection.end();
-    if (!hasRamp)
+    if (!hasNarrow)
         return intersection;
 
     const auto source_edge_data = node_based_graph.GetEdgeData(source_edge_id);
@@ -171,6 +171,8 @@ Intersection TurnAnalysis::handleSliproads(const EdgeID source_edge_id,
     const auto next_road_next_intersection =
         intersection_generator(intersection_node_id, next_road->turn.eid);
 
+    const auto next_intersection_node = node_based_graph.GetTarget(next_road->turn.eid);
+
     std::unordered_set<NameID> target_road_names;
 
     for (const auto &road : next_road_next_intersection)
@@ -187,7 +189,8 @@ Intersection TurnAnalysis::handleSliproads(const EdgeID source_edge_id,
             for (const auto &candidate_road : target_intersection)
             {
                 const auto &candidate_data = node_based_graph.GetEdgeData(candidate_road.turn.eid);
-                if (target_road_names.count(candidate_data.name_id) > 0)
+                if (target_road_names.count(candidate_data.name_id) > 0 &&
+                    node_based_graph.GetTarget(candidate_road.turn.eid) == next_intersection_node)
                 {
                     road.turn.instruction.type = TurnType::Sliproad;
                     break;
@@ -196,6 +199,30 @@ Intersection TurnAnalysis::handleSliproads(const EdgeID source_edge_id,
         }
     }
 
+    if (next_road->turn.instruction.type == TurnType::Fork)
+    {
+        const auto &next_data = node_based_graph.GetEdgeData(next_road->turn.eid);
+        if (next_data.name_id == source_edge_data.name_id)
+        {
+            if (angularDeviation(next_road->turn.angle, STRAIGHT_ANGLE) < 5)
+                next_road->turn.instruction.type = TurnType::Suppressed;
+            else
+                next_road->turn.instruction.type = TurnType::Continue;
+            next_road->turn.instruction.direction_modifier =
+                getTurnDirection(next_road->turn.angle);
+        }
+        else if (next_data.name_id != EMPTY_NAMEID)
+        {
+            next_road->turn.instruction.type = TurnType::NewName;
+            next_road->turn.instruction.direction_modifier =
+                getTurnDirection(next_road->turn.angle);
+        }
+        else
+        {
+            next_road->turn.instruction.type = TurnType::Suppressed;
+        }
+    }
+
     return intersection;
 }
 

src/extractor/guidance/turn_handler.cpp

@@ -1,7 +1,7 @@
-#include "extractor/guidance/turn_handler.hpp"
 #include "extractor/guidance/constants.hpp"
 #include "extractor/guidance/intersection_scenario_three_way.hpp"
 #include "extractor/guidance/toolkit.hpp"
+#include "extractor/guidance/turn_handler.hpp"
 
 #include "util/guidance/toolkit.hpp"
 
@@ -69,9 +69,6 @@ Intersection TurnHandler::handleTwoWayTurn(const EdgeID via_edge, Intersection i
     intersection[1].turn.instruction =
         getInstructionForObvious(intersection.size(), via_edge, false, intersection[1]);
 
-    if (intersection[1].turn.instruction.type == TurnType::Suppressed)
-        intersection[1].turn.instruction.type = TurnType::NoTurn;
-
     return intersection;
 }
 
@@ -112,8 +109,12 @@ Intersection TurnHandler::handleThreeWayTurn(const EdgeID via_edge, Intersection
 
         const bool is_much_narrower_than_other =
             angularDeviation(other.turn.angle, STRAIGHT_ANGLE) /
-                angularDeviation(road.turn.angle, STRAIGHT_ANGLE) >
-            INCREASES_BY_FOURTY_PERCENT;
+                    angularDeviation(road.turn.angle, STRAIGHT_ANGLE) >
+                INCREASES_BY_FOURTY_PERCENT &&
+            angularDeviation(angularDeviation(other.turn.angle, STRAIGHT_ANGLE),
+                             angularDeviation(road.turn.angle, STRAIGHT_ANGLE)) >
+                FUZZY_ANGLE_DIFFERENCE;
+
         return is_much_narrower_than_other;
     };
 
@@ -132,13 +133,9 @@ Intersection TurnHandler::handleThreeWayTurn(const EdgeID via_edge, Intersection
                                         .road_classification.road_class;
             const auto right_class = node_based_graph.GetEdgeData(intersection[1].turn.eid)
                                          .road_classification.road_class;
-            if (canBeSeenAsFork(left_class, right_class))
-            {
-                assignFork(via_edge, intersection[2], intersection[1]);
-            }
-            else if (isObviousOfTwo(intersection[1], intersection[2]) &&
-                     (second_data.name_id != in_data.name_id ||
-                      first_data.name_id == second_data.name_id))
+            if (isObviousOfTwo(intersection[1], intersection[2]) &&
+                (second_data.name_id != in_data.name_id ||
+                 first_data.name_id == second_data.name_id))
             {
                 intersection[1].turn.instruction =
                     getInstructionForObvious(intersection.size(), via_edge, false, intersection[1]);
@@ -154,6 +151,10 @@ Intersection TurnHandler::handleThreeWayTurn(const EdgeID via_edge, Intersection
                 intersection[1].turn.instruction = {findBasicTurnType(via_edge, intersection[1]),
                                                     DirectionModifier::SlightRight};
             }
+            else if (canBeSeenAsFork(left_class, right_class))
+            {
+                assignFork(via_edge, intersection[2], intersection[1]);
+            }
             else
             {
                 intersection[1].turn.instruction = {findBasicTurnType(via_edge, intersection[1]),
@@ -380,8 +381,12 @@ std::size_t TurnHandler::findObviousTurn(const EdgeID via_edge,
         }
 
         const auto out_data = node_based_graph.GetEdgeData(intersection[i].turn.eid);
+        auto continue_class = node_based_graph.GetEdgeData(intersection[best_continue].turn.eid)
+                                  .road_classification.road_class;
         if (intersection[i].entry_allowed && out_data.name_id == in_data.name_id &&
-            deviation < best_continue_deviation)
+            (best_continue == 0 || continue_class > out_data.road_classification.road_class ||
+             (deviation < best_continue_deviation &&
+              out_data.road_classification.road_class == continue_class)))
         {
             best_continue_deviation = deviation;
             best_continue = i;
@@ -395,7 +400,12 @@ std::size_t TurnHandler::findObviousTurn(const EdgeID via_edge,
         return 0;
 
     // has no obvious continued road
-    if (best_continue == 0 || true)
+    if (best_continue == 0 || best_continue_deviation >= 2 * NARROW_TURN_ANGLE ||
+        (node_based_graph.GetEdgeData(intersection[best_continue].turn.eid)
+                 .road_classification.road_class ==
+             node_based_graph.GetEdgeData(intersection[best].turn.eid)
+                 .road_classification.road_class &&
+         std::abs(best_continue_deviation) > 1 && best_deviation / best_continue_deviation < 0.75))
     {
         // Find left/right deviation
         const double left_deviation = angularDeviation(
@@ -425,8 +435,31 @@ std::size_t TurnHandler::findObviousTurn(const EdgeID via_edge,
             return best;
         }
     }
+    else
+    {
+        const double deviation =
+            angularDeviation(intersection[best_continue].turn.angle, STRAIGHT_ANGLE);
+        const auto &continue_data =
+            node_based_graph.GetEdgeData(intersection[best_continue].turn.eid);
+        if (std::abs(deviation) < 1)
+            return best_continue;
 
-    return 0; // no obvious turn
+        // check if any other similar best continues exist
+        for (std::size_t i = 1; i < intersection.size(); ++i)
+        {
+            if (i == best_continue || !intersection[i].entry_allowed)
+                continue;
+
+            if (angularDeviation(intersection[i].turn.angle, STRAIGHT_ANGLE) / deviation < 1.1 &&
+                continue_data.road_classification.road_class ==
+                    node_based_graph.GetEdgeData(intersection[i].turn.eid)
+                        .road_classification.road_class)
+                return 0;
+        }
+        return best_continue; // no obvious turn
+    }
+
+    return 0;
 }
 
 // Assignment of left turns hands of to right turns.

src/extractor/suffix_table.cpp

@@ -5,7 +5,6 @@
 
 #include <boost/algorithm/string.hpp>
 #include <boost/assert.hpp>
-#include <boost/range/adaptor/transformed.hpp>
 #include <boost/ref.hpp>
 
 #include <iterator>

src/server/request_handler.cpp

@@ -105,9 +105,11 @@ void RequestHandler::HandleRequest(const http::request &current_request, http::r
         else
         {
             BOOST_ASSERT(result.is<std::string>());
+            current_reply.content.resize(current_reply.content.size() +
+                                         result.get<std::string>().size());
             std::copy(result.get<std::string>().cbegin(),
                       result.get<std::string>().cend(),
-                      std::back_inserter(current_reply.content));
+                      current_reply.content.end());
 
             current_reply.headers.emplace_back("Content-Type", "application/x-protobuf");
         }

src/storage/storage.cpp

@@ -247,8 +247,8 @@ int Storage::Run()
                                                       coordinate_list_size);
     // we'll read a list of OSM node IDs from the same data, so set the block size for the same
     // number of items:
-    shared_layout_ptr->SetBlockSize<OSMNodeID>(SharedDataLayout::OSM_NODE_ID_LIST,
-                                               util::PackedVectorSize(coordinate_list_size));
+    shared_layout_ptr->SetBlockSize<std::uint64_t>(SharedDataLayout::OSM_NODE_ID_LIST,
+                                                   util::PackedVector<OSMNodeID>::elements_to_blocks(coordinate_list_size));
 
     // load geometries sizes
     boost::filesystem::ifstream geometry_input_stream(config.geometries_path, std::ios::binary);
@@ -540,7 +540,7 @@ int Storage::Run()
     // Loading list of coordinates
     util::Coordinate *coordinates_ptr = shared_layout_ptr->GetBlockPtr<util::Coordinate, true>(
         shared_memory_ptr, SharedDataLayout::COORDINATE_LIST);
-    OSMNodeID *osmnodeid_ptr = shared_layout_ptr->GetBlockPtr<OSMNodeID, true>(
+    std::uint64_t *osmnodeid_ptr = shared_layout_ptr->GetBlockPtr<std::uint64_t, true>(
         shared_memory_ptr, SharedDataLayout::OSM_NODE_ID_LIST);
     util::PackedVector<OSMNodeID, true> osmnodeid_list;
     osmnodeid_list.reset(

unit_tests/library/tile.cpp

@@ -54,7 +54,7 @@ BOOST_AUTO_TEST_CASE(test_tile)
         BOOST_CHECK_EQUAL(feature_message.tag(), util::vector_tile::FEATURE_ATTRIBUTES_TAG);
         // properties
         std::tie(value_begin, value_end) = feature_message.get_packed_uint32();
-        BOOST_CHECK_EQUAL(std::distance(value_begin, value_end), 8);
+        BOOST_CHECK_EQUAL(std::distance(value_begin, value_end), 10);
         auto iter = value_begin;
         BOOST_CHECK_EQUAL(*iter++, 0); // speed key
         BOOST_CHECK_LT(*iter++, 128);  // speed value
@@ -67,6 +67,9 @@ BOOST_AUTO_TEST_CASE(test_tile)
         *iter++;                       // skip value check, can be valud uint32
         BOOST_CHECK_EQUAL(*iter++, 3); // duration key
         BOOST_CHECK_GT(*iter++, 130);  // duration value
+        // name
+        BOOST_CHECK_EQUAL(*iter++, 4);
+        BOOST_CHECK_GT(*iter++, 130);
         BOOST_CHECK(iter == value_end);
         // geometry
         feature_message.next();
@@ -128,7 +131,7 @@ BOOST_AUTO_TEST_CASE(test_tile)
         }
     }
 
-    BOOST_CHECK_EQUAL(number_of_keys, 4);
+    BOOST_CHECK_EQUAL(number_of_keys, 5);
     BOOST_CHECK_GT(number_of_values, 128); // speed value resolution
 }