On Tue, Jul 28, 2015 at 5:29 PM, moltonel 3x Combo <molto...@gmail.com> wrote:
> I was arguing against a worldwide unified classification. What you're > worried about is only local classification : > > A router won't care about classification differences between far away > places like Germany to Ethiopia. They just care about taking the best > road in the area, and as long as OSM is locally consistent, this > works. Even if a trunk turns into a primary for no physical reason and > Seems like I didn't make my point correctly. I was trying to ask for global consistency so the router can use the same default weights for street types, everywhere in the world. Something like 'prefer primary roads over secondary' roads to travel large distances. Of course more detailed mapping of maxspeeds, number of lanes or street width, etc similar results can be achieved, will give better results than the default values a router assume for a certain highway class. I'll agree with you that that additional tags such as works_as_highway=primary will not be taken up by the data consumers (renderers/routers any time soon and would rather not introduce them. regards m
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