[Tagging] Feature Proposal - RFC - Turn Lanes

Ilya Zverev zverik at textual.ru
Tue Oct 11 13:23:53 BST 2011


Martin Koppenhoefer:
> how would the data consumer know, where the lanes are? E.g. a lane to 
> turn left might also be right of the through-lanes, and this is crucial 
> for routers to give good indications.

Specially for data consumers and advanced mappers there is a section in 
the proposal explaining step by step how to get the lane arrangement 
from proposed tags:
http://wiki.openstreetmap.org/wiki/Proposed_features/Turn_Lanes#Building_lane_directions
Default positions for turn lanes (when no *:location is given; for 
example, that lanes:turnleft are the leftmost lanes etc.) are explicitly 
stated in the proposal.


IZ



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