That's how the JOSM turnlanes plugin helps to tag it. It neatly describes the length of the turn lanes and where they lead the traffic to in a bunch of relations. The only thing missing from it is a way to indicate where exactly the turn lane starts (instead of making an estimation in meters).
Jo 2011/9/19 Kytömaa Lauri <lauri.kyto...@aalto.fi> > >wouldn't it be easier to tag directly how long each turn lane is for > >each approach rather than splitting the way in several places? > > Tagging geometry when you can have the geometry as geometric > entities? From a usability perspective that's bad, it's mixing totally > different mental models. And it's harder to survey/estimate lengths > both on the ground and from the aerials (where available), than > to place a node and split. > > -- > Alv > _______________________________________________ > Tagging mailing list > Tagging@openstreetmap.org > http://lists.openstreetmap.org/listinfo/tagging >
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