d53c267129
Roundabout Intersections are roundabouts with up to four ways and turn
angles which makes the turns obvious, e.g. as in:
```
*
*
* * * *
*
*
```
but not
```
*
*
* * *
* *
* *
```
For Roundabout Intersections we issue instructions such as
"turn <direction>" instead of "take the <nth> exit".
At the moment we have a limit on the radius for these Roundabout
Intersections of 5 meters. Which fails to classify a wide range of
Roundabout Intersections in the US (with the US-wide streets).
This changeset removes the Roundabout Intersection radius limit:
- if the roundabout is larger than a threshold and is named we classify
it as a rotary
- if the roundabout matches our criteria for Roundabout Intersections
we classify it as a Roundabout Intersection
- else fallback to plain old Roundabout
There is a second issue with determining a roundabout's radius.
But that's for another pull request (tracking in #2716).
References:
- https://github.com/Project-OSRM/osrm-backend/issues/2716
136 lines
6.1 KiB
Gherkin
136 lines
6.1 KiB
Gherkin
@routing @guidance
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Feature: Basic Roundabout
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Background:
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Given the profile "bicycle"
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Given a grid size of 10 meters
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Scenario: Only Enter
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Given the node map
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| | | a | | |
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| | | b | | |
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| d | c | | g | h |
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| | | e | | |
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| | | f | | |
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And the ways
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| nodes | junction |
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| ab | |
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| cd | |
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| ef | |
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| gh | |
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| bcegb | roundabout |
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When I route I should get
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| waypoints | route | turns |
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| a,c | ab,bcegb,bcegb | depart,roundabout-exit-undefined,arrive |
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| a,e | ab,bcegb,bcegb | depart,roundabout-exit-undefined,arrive |
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| a,g | ab,bcegb,bcegb | depart,roundabout-exit-undefined,arrive |
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| d,e | cd,bcegb,bcegb | depart,roundabout-exit-undefined,arrive |
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| d,g | cd,bcegb,bcegb | depart,roundabout-exit-undefined,arrive |
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| d,b | cd,bcegb,bcegb | depart,roundabout-exit-undefined,arrive |
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| f,g | ef,bcegb,bcegb | depart,roundabout-exit-undefined,arrive |
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| f,b | ef,bcegb,bcegb | depart,roundabout-exit-undefined,arrive |
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| f,c | ef,bcegb,bcegb | depart,roundabout-exit-undefined,arrive |
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| h,b | gh,bcegb,bcegb | depart,roundabout-exit-undefined,arrive |
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| h,c | gh,bcegb,bcegb | depart,roundabout-exit-undefined,arrive |
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| h,e | gh,bcegb,bcegb | depart,roundabout-exit-undefined,arrive |
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Scenario: Only Exit
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Given the node map
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| | | a | | |
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| | | b | | |
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| d | c | | g | h |
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| | | e | | |
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| | | f | | |
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And the ways
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| nodes | junction |
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| ab | |
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| cd | |
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| ef | |
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| gh | |
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| bcegb | roundabout |
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When I route I should get
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| waypoints | route | turns |
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| b,d | bcegb,cd,cd | depart,roundabout-exit-1,arrive |
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| b,f | bcegb,ef,ef | depart,roundabout-exit-2,arrive |
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| b,h | bcegb,gh,gh | depart,roundabout-exit-3,arrive |
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| c,f | bcegb,ef,ef | depart,roundabout-exit-1,arrive |
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| c,h | bcegb,gh,gh | depart,roundabout-exit-2,arrive |
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| c,a | bcegb,ab,ab | depart,roundabout-exit-3,arrive |
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| e,h | bcegb,gh,gh | depart,roundabout-exit-1,arrive |
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| e,a | bcegb,ab,ab | depart,roundabout-exit-2,arrive |
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| e,d | bcegb,cd,cd | depart,roundabout-exit-3,arrive |
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| g,a | bcegb,ab,ab | depart,roundabout-exit-1,arrive |
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| g,d | bcegb,cd,cd | depart,roundabout-exit-2,arrive |
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| g,f | bcegb,ef,ef | depart,roundabout-exit-3,arrive |
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#phantom node snapping can result in a full round-trip here, therefore we cannot test b->a and the other direct exits
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Scenario: Drive Around
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Given the node map
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| | | a | | |
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| | | b | | |
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| d | c | | g | h |
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| | | e | | |
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| | | f | | |
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And the ways
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| nodes | junction |
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| ab | |
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| cd | |
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| ef | |
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| gh | |
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| bcegb | roundabout |
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When I route I should get
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| waypoints | route | turns |
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| b,c | bcegb,bcegb | depart,arrive |
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| b,e | bcegb,bcegb | depart,arrive |
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| b,g | bcegb,bcegb | depart,arrive |
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| c,e | bcegb,bcegb | depart,arrive |
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| c,g | bcegb,bcegb | depart,arrive |
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| c,b | bcegb,bcegb | depart,arrive |
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| e,g | bcegb,bcegb | depart,arrive |
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| e,b | bcegb,bcegb | depart,arrive |
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| e,c | bcegb,bcegb | depart,arrive |
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| g,b | bcegb,bcegb | depart,arrive |
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| g,c | bcegb,bcegb | depart,arrive |
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| g,e | bcegb,bcegb | depart,arrive |
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Scenario: Mixed Entry and Exit
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Given the node map
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| | c | | a | |
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| j | | b | | f |
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| | k | | e | |
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| l | | h | | d |
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| | g | | i | |
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And the ways
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| nodes | junction | oneway |
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| abc | | yes |
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| def | | yes |
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| ghi | | yes |
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| jkl | | yes |
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| bkheb | roundabout | yes |
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When I route I should get
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| waypoints | route | turns |
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| a,c | abc,abc,abc | depart,roundabout-exit-1,arrive |
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| a,l | abc,jkl,jkl | depart,roundabout-exit-2,arrive |
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| a,i | abc,ghi,ghi | depart,roundabout-exit-3,arrive |
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| a,f | abc,def,def | depart,roundabout-exit-4,arrive |
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| d,f | def,def,def | depart,roundabout-exit-1,arrive |
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| d,c | def,abc,abc | depart,roundabout-exit-2,arrive |
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| d,l | def,jkl,jkl | depart,roundabout-exit-3,arrive |
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| d,i | def,ghi,ghi | depart,roundabout-exit-4,arrive |
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| g,i | ghi,ghi,ghi | depart,roundabout-exit-1,arrive |
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| g,f | ghi,def,def | depart,roundabout-exit-2,arrive |
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| g,c | ghi,abc,abc | depart,roundabout-exit-3,arrive |
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| g,l | ghi,jkl,jkl | depart,roundabout-exit-4,arrive |
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| j,l | jkl,jkl,jkl | depart,roundabout-exit-1,arrive |
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| j,i | jkl,ghi,ghi | depart,roundabout-exit-2,arrive |
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| j,f | jkl,def,def | depart,roundabout-exit-3,arrive |
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| j,c | jkl,abc,abc | depart,roundabout-exit-4,arrive |
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