[Tagging] Use cases: where would a count of all lanes be useful?
hermanns at ptt.uni-due.de
Mon Sep 19 15:39:50 BST 2011
Am 19.09.2011 13:29, schrieb Nathan Edgars II:
> Can someone give an example of a case where the number of lanes,
> including turning lanes, on a road would be more useful than just the
> through lanes, and where another tag (such as width) would not be even
> more useful? I'm unable to think of such a case.
Traffic simulation (e.g. by cellular automata) is a use case for this.
At crossroads it can make a huge difference for traffic engineering to
know if a (turn) lane can contain 3 or 30 vehicles.
To determine the "capacity" of a turn lane one would need information
about its length - and one would get this easily if start and end point
of the lane are known. Otherwise one would have to tag something like
"turn_lane_left_1=xx" and "turn_lane_left_2=yy" (indicating length or
capacity or whatever) in case of two turn lanes with different lengths.
-------------- next part --------------
A non-text attachment was scrubbed...
Size: 459 bytes
Desc: not available
More information about the Tagging