I can't think of a good solution for this, a few years ago they renumbered all properties along roads outside of residential areas to be the distance in decametres (10s of metres, 100m would be #10 etc) from the start of the road, they also have even on the right, odd on the left, this makes it easier for emergency services to find places because its based on distance.
I doubt there would be an easy was to interpolate this information for display, but it could be used to work out end points for routing, and all we need to know is which end of a way is the start, the rest can be worked out. _______________________________________________ Tagging mailing list Tagging@openstreetmap.org http://lists.openstreetmap.org/listinfo/tagging
