On Mon, Jul 10, 2017 at 9:56 AM, Albert Pundt <[email protected]> wrote:
> 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. > "north;forward"? > Wiki page could use some clarification. Superrelations, where the members are child relations, should have roles of north/south/east/west/clockwise/anticlockwise as appropriate. The child relations (and routes with only one relation) should have forward/backward if applicable; and if a child, then all members of the child will have forward or backward, and the relation itself will have direction=* agreeing with it's role in the superrelation.
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