I put this on a separate thread, as it is no more about the _main_highway tag definition
2009/8/5 Richard Mann <richard.mann.westoxf...@googlemail.com>: > My English was perhaps unclear. The discomfort is with using the same tag > for two quite different road types (industrial estate roads and country > lanes). Either would be fine on their own. > The potential problem for renderers is that there's a lot less space to > render things in urban areas, so they benefit if lower-order roads are > distinguishable between urban areas (so they can be narrowed or suppressed), > and rural areas (so they can be used to help fill up the space). Abutters > seems to offer one way of indicating to the renderer that it's within the > urban area without creating yet another highway tag. IMHO you have this in all highway-classes (at least streets/roads). A primary road in town will be different from a primary road outside town, as will be a secondary, tertiary, and practically all others (at least in Europe). Out of town you usually won't find BE:pavements / sidewalks, inside you will (in Europe) usually find them. In town you will find more lanes than out of town, ... That's IMHO not a problem, because you can see in the data if you're in town or outside. cheers, Martin _______________________________________________ talk mailing list talk@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk