I think that "temporary" and "historical" prefixes are the best answer to this, possibly with a relation for roads that are different due to the same event, project, etc. Tag things with what they are generally at the current day, and add exceptions as needed. I would envision an example like:
highway = unclassified name = Main Street temporary:highway = pedestrian temporary:start_date = 2009-01-16 temporary:end_date = 2009-01-20 notes = closed to cars during the music festival I don't know how to handle multiple temporary items. Perhaps "temporary1", "temporary2"... -- David J. Lynch djly...@gmail.com _______________________________________________ talk mailing list talk@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk
