On May 18, 2008, at 08:16, Alan Millar wrote: > In Oregon, freeway exits have official numbers ("Exit 3", "Exit 85", > etc.) > > I've been adding these as names to the motorway_link segments, > thinking it > may be useful on the map as well as possible routing uses (Take > Highway > 217 to Exit 7 to 72nd Ave, etc.)
What I've seen in Germany is a node highway=motorway_junction with ref and name tags. See http://openstreetmap.org/?lat=48.11495&lon=7.78786&zoom=15&layers=B0FT for instance. The name is rendered, and I assume the ref would be rendered if no name is given. So that would be a good start. For routing and other purposes, it would probably be desirable to create a junction relation that comprises all on- and off-ramps. Actually, there's some relevant stuff on the wiki: http://wiki.openstreetmap.org/index.php/Tag:highway%3Dmotorway_junction http://wiki.openstreetmap.org/index.php/Mapping/Features/Junction http://wiki.openstreetmap.org/index.php/Proposed_features/Junction_number http://wiki.openstreetmap.org/index.php/Relations/Proposed/Junctions Cheers Robert _______________________________________________ talk mailing list talk@openstreetmap.org http://lists.openstreetmap.org/cgi-bin/mailman/listinfo/talk