[Talk-us] Directions as route relation roles

Albert Pundt roadsguy99 at gmail.com
Mon Jul 10 14:56:57 UTC 2017

The wiki page Highway Directions In The United States lists a method of
tagging directions in route relation roles that sets the role as the posted
direction of the way in OSM's forward direction. For single-carriageway
roads, this means that backwards is the opposite cardinal direction.
Presumably two-way roads carrying only one direction of a route (which only
exist in brief segments, but are common nationwide) are still given just
"forward" and "backward". Or would multiple values be used, e.g.

My question is whether this is actually commonly used. I haven't seen this
method used anywhere, but then again I haven't really looked either. How
widespread is this practice?
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