Hmmm... I guess the main problem that people have is that a tag like "importance" (or its synonyms) is inherently subjective and a subjective tag is hard to determine "on the ground". Given the recent discussions about unofficial cycle routes and the secondary roads in Ipswich, people seem to be just a bit allergic to things that can't be surveyed.
For what it's worth, I viewed the purpose of the importance tag in the context of a general-purpose map which OSM is by default (though it can and does support specialist maps like the Cycle Map). I guess such importance/popularity/prominence data can conceivably be compiled as a separate database to be maintained by those who are interested in it instead of being included into OSM. On Wed, Jun 3, 2009 at 12:20 AM, Martin Koppenhoefer <dieterdre...@gmail.com > wrote: > 2009/6/2 Nic Roets <nro...@gmail.com>: > > 2009/6/2 Iván Sánchez Ortega <i...@sanchezortega.es> > >> > >> El Martes, 2 de Junio de 2009, Jonathan Bennett escribió: > >> > Eugene Alvin Villar wrote: > >> > > Any comments? > >> > > >> > "Important to who?" > >> > >> And important for what? > > > > Well, if you are drawing a map then you want to know if something is > > important for navigation. Like a landmark. > > well, navigation is not the only purpose of maps, and in this example > the mountainpeak might be a better landmark than the park. > > > It is of course possible to estimate (with a computer) how important > > something is by analyzing the road network around it. Sometimes > importance > > follows roads and sometimes roads follow importance, but the correlation > is > > clear. > > yes, and sometimes there is a very important feature and no road to > it. By using this kind of algorithm all motorway-crossings become > "important" features (which they are to people in cars, but they are > not to pedestrians, archeologists and cyclists). > > Martin > > _______________________________________________ > talk mailing list > talk@openstreetmap.org > http://lists.openstreetmap.org/listinfo/talk > -- http://vaes9.codedgraphic.com
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