I've been saying that I believe tagging that applies to an entire relation should be placed ONLY on the relation and NOT on the individual ways, UNLESS, there is some characteristic of the way that requires different tagging. I gave examples using the Trans Alaska Pipeline but this reasoning extends to other cases. Just now, I came across this statement in the Wiki concerning islands in a river system:
"To map islands in a river you can use a multipolygon <https://wiki.openstreetmap.org/wiki/Relations/Multipolygon> relation and the island and the main river bank should be included in the relation. The main riverbank way (way 1 in image above) will have the role 'outer' and the way for the island (way 2 in image above) will have the role 'inner'. *When mapping with multipolygon relations do not tag the member ways with waterway=riverbank as well - this is wrong. Member ways should be untagged unless they have a separate meaning on their own (like barrier <https://wiki.openstreetmap.org/wiki/Key:barrier>=retaining_wall <https://wiki.openstreetmap.org/wiki/Tag:barrier%3Dretaining_wall>)"* (*BOLD TEXT* is my addition) This is exactly what I've been saying *. Member ways should be untagged unless they have a separate meaning on their own. * There you have it. It's a logical system of tagging and makes perfect sense both from an initial standpoint and for ease of maintenance later on. On Sat, Nov 3, 2018 at 5:34 PM Mateusz Konieczny <matkoni...@tutanota.com> wrote: > 3. Nov 2018 11:30 by davefoxfa...@btinternet.com: > > Duplication of data leads to confusion, wasted time & errors. > Please refrain from mapping in this way. > > > Please refrain from demanding that other stop mapping in way that is > commonly accepted. > > > Suggesting, promoting and explaining alternatives is fine, but claiming > that one way is sole > > acceptable while it is untrue is irritating. > _______________________________________________ > Tagging mailing list > Tagging@openstreetmap.org > https://lists.openstreetmap.org/listinfo/tagging > -- Dave Swarthout Homer, Alaska Chiang Mai, Thailand Travel Blog at http://dswarthout.blogspot.com
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