Bah, if you want to tag the Canale Grande something else than waterway=canal, you have an occupation for years ;) Yves
Le 30 juin 2018 15:18:53 GMT+02:00, Martin Koppenhoefer <dieterdre...@gmail.com> a écrit : > > >sent from a phone > >> On 30. Jun 2018, at 14:41, Volker Schmidt <vosc...@gmail.com> wrote: >> >> The reason I am asking here, is that I detected by chance that >navigation channels in the Venice Lagoon [1] have been tagged as >waterway=canal, which to me seems not correct, or at least not covered >by the wiki definition. > > >I have noticed problems with this as well in a map I made in this area >(1:400.000) this week, what a coincidence. > >Reading the wiki, it seems in line with the canali tagged like this >(artificial ones, if there are any), because there is a merely >functional distinction: > > >“An artificial open flow waterway used to carry useful water for >transportation, waterpower, or irrigation.” > >Somehow the mapnik style always conveyed a hierarchy of scale between >canal, drain and ditch but there is not anything about this in the >current wiki article: >https://wiki.openstreetmap.org/wiki/Tag:waterway%3Dcanal > >Thinking about it, the Canale Grande should maybe not get >waterway=canal but waterway=river? > >https://www.openstreetmap.org/way/398987317#map=14/45.4368/12.3284 > >Cheers, >Martin
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