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=== Which direction is the turn? === | === Which direction is the turn? === | ||
[[#Turn_Left|Left => Turn Left]] | |||
[[#Turn_Left|Turn Left]] | |||
[[#Turn_Right|Right => Turn Right]] | |||
[[#Turn_Right|Turn Right]] | |||
=== Are there any other ''branches'' with unrestricted turns from ''the origin''? === | === Are there any other ''branches'' with unrestricted turns from ''the origin''? === | ||
[[#Is_the_name_of_the_origin_and_the_destination_identical.3F|YES]] | |||
[[#Is_the_name_of_the_origin_and_the_destination_identical.3F| | |||
[[#No_Instruction|NO => No Instruction]] | |||
[[#No_Instruction|No Instruction]] | |||
=== Is the name of ''the origin'' and ''the destination'' identical? === | === Is the name of ''the origin'' and ''the destination'' identical? === | ||
[[#Are_the_origin_and_the_destination_the_same_road_type.3F|YES]] | [[#Are_the_origin_and_the_destination_the_same_road_type.3F|YES]] | ||
NO | [[#Are_the_origin_and_the_destination_the_same_road_type.3F_2|NO]] | ||
=== Are ''the origin'' and ''the destination'' the same road type? === | === Are ''the origin'' and ''the destination'' the same road type? === | ||
YES | [[#Are_both_the_name_AND_the_road_type_of_any_of_the_other_branches_identical_to_the_origin.3F|YES]] | ||
NO | NO | ||
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YES | YES | ||
NO | [[#No_Instruction|NO => No Instruction]] | ||
=== Which direction is the turn? === | |||
=== Is the name of any of the ''other branches'' identical to ''the origin''? === | === Is the name of any of the ''other branches'' identical to ''the origin''? === | ||
YES | YES | ||
| Line 57: | Line 56: | ||
NO | NO | ||
=== Are ''the origin'' and ''the destination'' the same road type? | === Are ''the origin'' and ''the destination'' the same road type? === | ||
YES | YES | ||
NO | NO | ||
=== Is the name of any of the ''other branches'' identical to ''the origin''? | === Is the name of any of the ''other branches'' identical to ''the origin''? === | ||
YES | YES | ||
Revision as of 18:13, 30 May 2014
This will be a clickable interactive guide to determining what instruction, if any, will be given at the junction between any 2 segments. There will eventually be encyclopedia style illustrations for the various configurations to visually describe the setup. This will formatted as a sequence flow through, to cover (hopefully) all variations.
Introduction
Understanding how and which instructions are provided requires first understanding a few concepts.
- This page is discussing the instruction which will be provided by the Waze server (or not provided) when travelling from one segment, through a junction, and onto a second segment.
- How Best Continuations work. Any time the destination segment is the Best Continuation there will not be an instruction provided.
Definitions
- The segment you are on before going through the junction, in other words the segment you are coming from will be referred to as the origin, and corresponds to s-in in the the algorithm text provided by Waze staff.
- The segment you will be on after the junction, in other words the segment you are going to will be referred to as the destination, and corresponds to s-out in the the algorithm text provided by Waze staff.
- Any segments other the destination which leave the junction at an angle less than 44° will be referred to as other branches, and corresponds to s-N, or s-1,2,3,4... in the the algorithm text provided by Waze staff.
- When the beginning portion two segments are directly on top of each other, meaning they both leave the junction at the exact same angle as each other, they will be referred to as an overlapping segment.
The interactive algorithm
Other than the origin and the destination, are there any other segments connected to this junction?
Is the turn angle from the origin to the destination between 44.5° and 135°?
NO, the turn angle is less 44.5°.
Turns with angles greater than 150° will follow the same instruction path as 44.5°-135°, but the Waze routing server will penalize this turn, and avoid routing through it.
Which direction is the turn?
Are there any other branches with unrestricted turns from the origin?
Is the name of the origin and the destination identical?
Are the origin and the destination the same road type?
NO
Are both the name AND the road type of any of the other branches identical to the origin?
YES
Which direction is the turn?
Is the name of any of the other branches identical to the origin?
YES
NO
Are the origin and the destination the same road type?
YES
NO
Is the name of any of the other branches identical to the origin?
YES
NO
Is the road type of any of the other branches identical to the origin?
YES
NO
The instructions
No Instruction
There will be No instruction given passing through this junction.
Turn Right
Keep/Stay Right
Exit Right
The instruction in a left hand drive country will be Exit right.
In a right hand drive country this instruction does not exist, and will instead give a Keep/Stay_Right instruction. A junction with this exact setup but a left angle turn would give an Exit Left instruction in a right hand drive country.
Turn Left
Keep/Stay Left
Exit Left
The instruction in a right hand drive country will be Exit left.
In a left hand drive country this instruction does not exist, and will instead give a Keep/Stay_Left instruction. A junction with this exact setup but a right angle turn would give an Exit Right instruction in a left hand drive country.