Harald Kliems wrote: > Very nice, Richard! One quick comment: I might not be the only > who doesn't always change the tiger:reviewed tag when fixing > TIGER-imported roads. I don't know if that's technically feasible, > but maybe it would be better to check if a way has been modified > since import, independent of the tiger:reviewed tag.
Absolutely. I did consider this and it's very feasible - osm2pgsql can tell you the user who last modified a way, and if it's DaveHansenTiger or woodpeck-fixbot, you can presume it's unmodified. Unfortunately, there are way too many false positives. Partly this is consequential damage (in particular, ways which have been split) but also bulk edits - for example, in several of states, people have assigned (say) maxspeed=35mph to all ways matching certain criteria, including dirt tracks tagged as highway=residential. This means the last editor is no guarantee that a residential is actually a usable paved road. After a few experiments (and I've been working on this all year, pretty much) I concluded that the tiger:reviewed tag is the only way of doing it. I'd restate that I'm only using this on rural residentials - anything unclassified or higher, or in an urban area, is assumed ok. Personally I have F6 assigned as a shortcut key in P2 for highway=unclassified for ease of quick retagging. :) cheers Richard -- View this message in context: http://gis.19327.n5.nabble.com/cycle-travel-US-bike-routing-and-unreviewed-rural-TIGER-tp5848084p5848141.html Sent from the USA mailing list archive at Nabble.com. _______________________________________________ Talk-us mailing list Talk-us@openstreetmap.org https://lists.openstreetmap.org/listinfo/talk-us
