Hi Le mer. 29 mai 2019 à 10:59, Martin Koppenhoefer <dieterdre...@gmail.com> a écrit :
> > What about the practical, human scale distinction we use for natural > waterways (can be jumped over), wouldn’t it be equally interesting for man > made waterways? > Is a canal you can jump over still a canal, or does size somehow come into > the equation? Can there be draining canals, or are these always drains? > I think that distinction between canal and drain is well established (useful vs superflous water) and understandable for common mappers. waterway=ditch should be discouraged since distinction between drain and ditches comes with their shape and lining. Another key like structure=* would be suitable Whatever the conclusion of this thread will be, the table here should be carefully updated https://wiki.openstreetmap.org/wiki/Key:waterway#Values Le mer. 29 mai 2019 à 12:55, Joseph Eisenberg <joseph.eisenb...@gmail.com> a écrit : > waterway=canal probably has a minimum width? > As useful water can run in ducts of any width, I don't think so. Le mer. 29 mai 2019 à 15:15, Martin Koppenhoefer <dieterdre...@gmail.com> a écrit : > examples > https://assets.weforum.org/editor/skgMAyNg8Xu_anqQbTcTo87HkYgWEiN0eF-5dlsLhCo.jpg > http://www0.f1online.de/preW/004754000/4754656.jpg > > http://www.insel-teneriffa.de/bilder-images/wasserversorgung-teneriffa-tf00_1474.jpg > > https://c7.alamy.com/compde/eetk3t/levada-bewasserungskanal-und-wanderweg-in-der-nahe-von-rabacal-madeira-eetk3t.jpg > > maybe these could be called aqueducts? > Is it possible to introduce waterway=aqueduct for any man made waterway and replace waterway=drain by waterway=aqueduct + usage=drainage ? Le mer. 29 mai 2019 à 21:55, Mateusz Konieczny <matkoni...@tutanota.com> a écrit : > For me all of the look equally fine. > According to past discussions about yes/no values, it seems some people won't agree at least for irrigation=yes To me service=irrigation sounds more like a paid subscription for a given performance. +1 with Joseph for usage=irrigation All the best François
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