> > Sorry if I've not seen the old posts on this, the wiki pages are > contradictory which is why I asked the question. > > In the UK we are defining Trunk or Primary based on some arbitrary > definition not on anything that is of use to any user or renderer. > > What we should be mapping is reality, so that people can use that data > to build on. Whether a road is signed in Green, Pink or Purple tells a > user nothing, it may have a legal definition but that is all. The tag > we give it should tell the user something about the road's capabilities, > importance, size and potential timings/traffic flow. A Trunk road that > is a dual carriageway with a maxspeed of 70 mph is very different to a > Trunk road that winds around fields and has a maxspeed of 50 mph or less!
Other tags such as lanes=*, width=*, surface=*, maxspeed=* etc... are for more the detailed nuances of route calculations based on the physical properties of the road. Or for how a renderer could choose to emphasize certain roads over others. Of course the bendyness of the road should be interfered from the geometry of the node positions themselves. HTH. _______________________________________________ Talk-GB mailing list Talk-GB@openstreetmap.org https://lists.openstreetmap.org/listinfo/talk-gb
