> Road level sounds to me like how high it is. Or on which level in a > complex crossing with fly-overs and stuff. > Beside that, would it be a problem to add a key for generic road > classification while still keeping the old values? Users could use the > generic classification by preference, and default to the older tags. > (I'm not voting, just thinking loud)
No, road_level is an administrative level like admin_level is to places. It is not to be confused with level=## and layer=## tags. There are 6 different tiers of classified roads in Russia: M, R, national A, provincial A, K, provincial minor. In road_level system, you can express them as M=0, R=1, national A=2, provincial A=3, K=4, minor=5. This system also allows non-primary motorways, which are not expressible in current tagging scheme, (such as metropolitan motorways in Spain) as you can combine highway=motorway with road_level=## tag. It can also be generalised to railways. railway=rail where road_level corresponds to 0=high speed railroad (vmax>250km/h, no level crossings, fully signalled), 1=passenger-rated mainline, 2=freight-rated mainline, 3=branch line, 4=mining railroad. I forgot stating an important detail. This is backwards compatible. highway=road without road_level=* would default to unclassiffied unknown road just like now. 09-05-2018 11:15 tarihinde Mateusz Konieczny yazdı: > 8. May 2018 22:56 by erkinalp9...@gmail.com > <mailto:erkinalp9...@gmail.com>: > > I hereby propose a new tagging scheme. highway=primary ... tertiary > deprecated. highway=road road_level=<numeric value> where values > correspond to > > 0=trunk, 1=primary, 2=secondary, 3=tertiary etc. highway=motorway and > other special tags (pedestrian, footway, service, track, path, > living_street etc.) would still be used. > > > In case that you are serious: new tagging scheme, especially one > breaking nearly > > all software using OSM data should explain why it is a good idea. > > _______________________________________________ Tagging mailing list Tagging@openstreetmap.org https://lists.openstreetmap.org/listinfo/tagging
