2009/7/29 Greg Troxel <g...@ir.bbn.com>: > There are three separate concepts: > > physical structure > > administrative designation > > importance according to actual use
maybe there could be also a forth that is structural importance for the historical development (e.g. the main street, that was there before all others and the rest developed around it). > I would be in favor of > trying to move slightly to importance-based tagging me too > using ref to mark administrative designation +1 > using motorway and trunk as the current rules state. Here, the roads > are so big physically that the importance more or less matches, and > all such roads are important more or less by definition. yes, motorways are the most easy ones, they are motorways when they are motorways (in Germany Autobahnsign, in other countries equivalent sign). > using primary, secondary, tertiary without real regard to legal status > or physical size, but according to usage: +1 > primary is typically used for long-distance travel, 100km or more, > or for a road that until recently was still used for that and is > still culturally important +1, even when the long-distances in Europe might begin at 50 km, the concept is the same > secondary is typically used for travel at least 25km (between > multiple towns) > tertiary is used to get to secondary roads (to get to the 'real > road' in the next town) this is working well for out-of-town situations. Inside urban agglomerations there should be different criteria though (and not necessarily they are physical, what is my point: let's put the definition according to everyday best-practise tagging). cheers, Martin _______________________________________________ talk mailing list talk@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk
