> Wolfgang - you mentioned breaking Ways at crossings with other > Ways. Do you not then lose information about how the Ways > interact? I haven't looked closely at the data in Edinburgh yet > but I was hoping that the manner in which Ways cross each other > would give me information on which Way has 'right of way'., i.e. > if 2 Ways meet at a node such that the degree of the node is 3 or > 4 and the junction is not a traffic light or roundabout then one > of the Ways is a 'major' road and traffic on it has priority, the > other is then a 'minor' road and traffic on it must 'give way'. > It may not always be possible to tell from the tagging which road > is the 'major' but in some cases a hierarchy should give it i.e. > highway=unclassified gives way to highway=primary. >
Yes, roads should share a common node on crossings, but in many cases the same way id is used before and after the crossing. So I break these ways up into two routing records pointing via way id to the original data. Hope thats clearer now. CU Wolfgang _______________________________________________ Routing mailing list [email protected] http://lists.openstreetmap.org/listinfo/routing
