On Wed, Dec 16, 2009 at 12:10 AM, Ian Dees <[email protected]> wrote: > Although nothing is "required" in OSM, the layer tag always helps on a > bridge because you could have multiple bridges passing each other (as in a > highway interchange). In that case, the layer tag specifies at what "layer" > in the 3rd dimension the bridge exists.
Um, the layer tag helps specifically *only* in cases with bridges over bridges...which are exceedingly rare. So I would dispute your premise that "the layer tag always helps on a bridge". Steve _______________________________________________ talk mailing list [email protected] http://lists.openstreetmap.org/listinfo/talk
