On 7/16/10 12:50 AM, Steve Bennett wrote:
IMHO yes it's useful, because the paved/unpaved distinction is by far the most important one for roads. The problem is that surface=* is an unbounded list, so renderers potentially have to support surface=dirt, gravel, cobblestone, mud, cracked_concrete, rough, and whatever else peoples' fertile imaginations come up with. Having multiple layers of tags (ie, paved=no, surface=dirt) is much more re-use friendly.
from a data modeling perspective, though, it's redundant and thus creates the opportunity for inconsistency and unresolvable error. richard _______________________________________________ Tagging mailing list [email protected] http://lists.openstreetmap.org/listinfo/tagging
