The current suggestion on how to tag rural numbering is to create a relation with any applicable ways and a node for the start and end.
Generally the start and end will coincide with the start/end of the road, but long stretches of roadway may be broken up into 100km sections. I added a small section to the Australian Tagging Guidelines on this, including suggested tagging to use: http://wiki.openstreetmap.org/wiki/Australian_Tagging_Guidelines#Rural_Road_Numbering _______________________________________________ Talk-au mailing list Talk-au@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk-au