[Tagging] Large, multilane road tagging question
dieterdreist at gmail.com
Thu May 15 10:16:37 UTC 2014
2014-05-15 11:14 GMT+02:00 John Willis <johnw at mac.com>:
> I have mapped some complicated intersections using links to represent turn
> lanes and other options in very large intersections. The links are
> connected exactly where they would logically connect one road to the other
> for each direction.
> Recently, I have been using Apple's turn by turn directions here in Japan
> (love it), and they seem to represent complicated intersections in a
> similar manner.
> Is there a philosophical or practical downside to representing a non-
> motorway in this manner? I am insure of how this effects the validity of
> the data, but for the current renderer, there seems to be no real visual
> issue, besides the arrows.
it is clearly against the conventions to use the tag highway=* for lanes,
it is a tag for carriageways. If you want to map lanes you should use
I agree that explicit ways to represent lanes can have some benefits, for
example are they much easier to understand and maintain in complex
situations then the parametric approach.
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