Introduce a tag that allows ways to indicate explicitly whether a 4WD vehicle is required to navigate that way. This would also allow routing engines to take into account such ways, so that non-4WD vehicles aren't routed onto roads they aren't capable of.
Please see the proposal page for the details http://wiki.openstreetmap.org/wiki/Proposed_features/4WD_Only Matt _______________________________________________ talk mailing list talk@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk
