I think a much more useful application than those suggested already is to identify all of the bridges that cross over a way. It's easy to find all of the ways that go under a way, but what use is that? It's quite important for waterways in general to be able to find every bridge that will be crossing over your path, and it's also necessary if routing for a tall vehicle on roads.
-- Borbus. _______________________________________________ talk mailing list talk@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk
