For every rule we can find exceptions. The basic idea behind the decision-tree was: use the most important / most logical route for the way-ref tag. Putting every single route-label in the ref-tag is not a good idea.
If you want to identify a whole route, use a relation. Based on the relations (a way is part of) a routing engine could then identify under which other route numbers this road is also known by. Op 21 aug. 2011, om 16:35 heeft Alan Mintz het volgende geschreven: > At 2011-08-21 06:56, Henk Hoff wrote: >> A suggestion: >> - ... When the road is part of multiple routes, the main route is used. That >> could be: >> ** a higher classification prevails (US over state) >> ** the continuous route prevails (if route x uses part of route y to get to >> it's next section, then route y is used). >> ** the number closed to 0 prevails > > I disagree. The semi-colon delimiter should be used. I doubt people could > remember which rule to apply, and I don't agree it should be applied anyway, > as for any particular roadway, the name by which it is colloquially known is > inconsistent. CA example: > > I-215 shares routing with SR-60 for a few miles. People in the area still > consider it SR-60. It is tagged ref="CA 60;I 215". > > SR-79 shares routing with I-15 for a few miles. People in the area still > consider it I-15. It is tagged ref="I 15;CA 79". > > These actually conform with the second rule above (and the third, but that's > entirely coincidental), but I'm sure I can find counter-examples. > > -- > Alan Mintz <alan_mintz+...@earthlink.net> > > > _______________________________________________ > Talk-us mailing list > Talk-us@openstreetmap.org > http://lists.openstreetmap.org/listinfo/talk-us _______________________________________________ Talk-us mailing list Talk-us@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk-us
