The recent rendering of capitals in osm-carto[1] brought new interest in the tag capital=*[2]. I edited the feature page according to the latest summary in the proposal (linked in feature page) which also mirrors actual data usage.
Claim 1: Capital=yes should be used for capitals of countries. Capital=<admin_level> should be used for administrative subdivisions in countries. Another tagging approach (used widely in Russia) is to tag capital=yes + admin_level=<number> on cities. This usage depends on how admin_level on place is actually defined! For example Berlin[3] is inside boundary=administrative+admin_level=4 (Berlin State). But currently Berlin has place=city+admin_level=2 and is at the same level as Germany! For example Yakutsk[4] is inside boundary=administrative+admin_level=6 (Yakutsk Urban District). But currently Yakutsk has place=city+admin_level=4 and is at the same level as the Sakha Republic. Claim 2: Capital=yes/number is more than enough to describe the capital status, we don't need admin_level for it. Admin_level on place should not be used for describing capital=yes or national importance but just for administrative level of the place as defined by the borders around it. Just a heads-up: the long-term solution is to use admin_centre on national boundaries. [1] https://github.com/gravitystorm/openstreetmap-carto/pull/2314 [2] https://wiki.openstreetmap.org/wiki/Key:capital [3] https://www.openstreetmap.org/node/240109189 https://www.openstreetmap.org/relation/62422 [4] https://www.openstreetmap.org/node/191652335 https://www.openstreetmap.org/relation/1444344 https://www.openstreetmap.org/relation/151234 _______________________________________________ Tagging mailing list [email protected] https://lists.openstreetmap.org/listinfo/tagging
