osrm-backend/features/car/restrictions.feature

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@routing @car @restrictions
Feature: Turn restrictions
Handle turn restrictions as defined by http://wiki.openstreetmap.org/wiki/Relation:restriction
Note that if u-turns are allowed, turn restrictions can lead to suprising, but correct, routes.
Background: Use car routing
Given the speedprofile "car"
@no_turning
Scenario: No left turn
Given the node map
| | n | |
| w | j | e |
| | s | |
And the ways
| nodes | oneway |
| sj | yes |
| nj | -1 |
| wj | -1 |
| ej | -1 |
And the relations
| from | to | via | restriction |
| sj | wj | j | no_left_turn |
When I route I should get
| from | to | route |
| s | w | |
| s | n | sj,nj |
| s | e | sj,ej |
@no_turning
Scenario: No right turn
Given the node map
| | n | |
| w | j | e |
| | s | |
And the ways
| nodes | oneway |
| sj | yes |
| nj | -1 |
| wj | -1 |
| ej | -1 |
And the relations
| from | to | via | restriction |
| sj | ej | j | no_right_turn |
When I route I should get
| from | to | route |
| s | w | sj,wj |
| s | n | sj,nj |
| s | e | |
@no_turning
Scenario: No u-turn
Given the node map
| | n | |
| w | j | e |
| | s | |
And the ways
| nodes | oneway |
| sj | yes |
| nj | -1 |
| wj | -1 |
| ej | -1 |
And the relations
| from | to | via | restriction |
| sj | wj | j | no_u_turn |
When I route I should get
| from | to | route |
| s | w | |
| s | n | sj,nj |
| s | e | sj,ej |
@no_turning
Scenario: Handle any no_* relation
Given the node map
| | n | |
| w | j | e |
| | s | |
And the ways
| nodes | oneway |
| sj | yes |
| nj | -1 |
| wj | -1 |
| ej | -1 |
And the relations
| from | to | via | restriction |
| sj | wj | j | no_weird_zigzags |
When I route I should get
| from | to | route |
| s | w | |
| s | n | sj,nj |
| s | e | sj,ej |
@only_turning
Scenario: Only left turn
Given the node map
| | n | |
| w | j | e |
| | s | |
And the ways
| nodes | oneway |
| sj | yes |
| nj | -1 |
| wj | -1 |
| ej | -1 |
And the relations
| from | to | via | restriction |
| sj | wj | j | only_left_turn |
When I route I should get
| from | to | route |
| s | w | sj,wj |
| s | n | |
| s | e | |
@only_turning
Scenario: Only right turn
Given the node map
| | n | |
| w | j | e |
| | s | |
And the ways
| nodes | oneway |
| sj | yes |
| nj | -1 |
| wj | -1 |
| ej | -1 |
And the relations
| from | to | via | restriction |
| sj | ej | j | only_right_turn |
When I route I should get
| from | to | route |
| s | w | |
| s | n | |
| s | e | sj,ej |
@only_turning
Scenario: Only straight on
Given the node map
| | n | |
| w | j | e |
| | s | |
And the ways
| nodes | oneway |
| sj | yes |
| nj | -1 |
| wj | -1 |
| ej | -1 |
And the relations
| from | to | via | restriction |
| sj | nj | j | only_straight_on |
When I route I should get
| from | to | route |
| s | w | |
| s | n | sj,nj |
| s | e | |
@no_turning
Scenario: Handle any only_* restriction
Given the node map
| | n | |
| w | j | e |
| | s | |
And the ways
| nodes | oneway |
| sj | yes |
| nj | -1 |
| wj | -1 |
| ej | -1 |
And the relations
| from | to | via | restriction |
| sj | nj | j | only_weird_zigzags |
When I route I should get
| from | to | route |
| s | w | |
| s | n | sj,nj |
| s | e | |