I downloaded from TagWatch NA a couple days ago, a list of power=station nodes and closed ways. I then audited each feature in southern CA (36 of them) against imagery and a list of known SCE substations and generating stations. Here are the results:
Closed ways: - 1 unknown (unable to determine from imagery or list) - 1 is the terminus of a HVDC line, which is maybe a special case - 10 are generating stations or switchyards adjacent to and part of them (incorrect usage) - 16 are substations (correct usage) - There are clearly many more substations that are not tagged (or not tagged power-station anyway), but probably not many more generating stations. Standalone nodes: - 1 unknown - 3 are generating stations that are not otherwise tagged (incorrect usage) - 3 are generating stations that also have closed ways (included in the Closed ways category above) surrounding them (incorrect usage) - 4 are substations (correct usage) So, it seems that there is both correct and incorrect usage in similar amounts so far. I hope to report back with power=sub_station and power=generator, as well as a count of editing users, soon. -- Alan Mintz <alan_mintz+...@earthlink.net> _______________________________________________ Tagging mailing list Tagging@openstreetmap.org http://lists.openstreetmap.org/listinfo/tagging
