Karl Newman wrote: > > Agreed. The criteria listed on the Wiki page promote too many highways > to "motorways". It's too hard to distinguish between them; in dense > urban areas you could end up with a lot of "motorways". It seems to me > the "motorway" tag should be reserved for interstates, with some > exceptions for major US highways. You left out "tertiary" from your > descriptions. I would see "tertiary" as an important thoroughfare road > through a town--higher speeds and less traffic controls than > "unclassified". How about these guidelines, based on speed limits and > lanes: > > * motorway: Interstate, 2+ travel lanes, ramp access only, speed > limit 65 MPH+ > * trunk: US highway, 2+ travel lanes, ramp access only, speed limit > 60-70 MPH > * primary: US highway, 1-2 travel lanes, or State highway, 2 travel > lanes, speed limit 55-65 MPH, can have occasional > stoplights/traffic controls > * secondary: State highway, 1-2 travel lanes, or larger county > highway, speed limit 45-55 MPH > * tertiary: County highway, other unnumbered thoroughfare, speed > limit 40-50 MPH > * unclassified: urban commercial district or rural low-density > housing, normally no direct driveway access to housing in urban or > suburban areas, speed limit 30-40 MPH > * missing_tag: It seems like there needs to be another > classification for residential branch roads which are main roads > through subdivisions but still have direct driveway access to > housing. > * residential: urban or suburban roads primarily for providing > access to housing, speed limit 15-25 MPH >
I agree, with the modification that trunk doesn't need to be ramp access only, and that county highways are secondary. I've used tertiary for the missing_tag you describe, as this seems to be in line with the European tertiary roads. (these comments are also on the wiki, I believe. -Alex Mauer "hawke" _______________________________________________ Talk-us mailing list Talk-us@openstreetmap.org http://lists.openstreetmap.org/cgi-bin/mailman/listinfo/talk-us