Personally, I think putting the US: in front of state routes is going to get confusing. People are oing to think they're looking at US routes and not state routes.
Second, some significant caution will be needed with adding signs. Some signs (mainly toll roads opened after 1989) are copyrighted and could not be used under any circumstances. See the Wikipedia page where this was discussed: http://en.wikipedia.org/wiki/Wikipedia:Copyright_on_highway_shields 25or6to4 _______________________________________________ Talk-us mailing list Talk-us@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk-us
