If the road is mapped as a single carriageway and the distance marker is clearly visible from both sides of the road, then it would be simplest to make it a node on the way itself. Otherwise, it should probably be a separate node on one side or the other.
Of course the length of a road and the distance along it can be calculated from the OSM data and do not need special nodes every 1km or so. But if the object exists in the real world, it can be mapped. -- Ed Avis <e...@waniasset.com> _______________________________________________ talk mailing list talk@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk