Which of the ways of tagging "irrigation" should be used? "irrigation=yes" works ok, but it hasn't been very popular the last few years "service=irrigation" is still most common, but the key is a little odd "usage=irrigation" makes sense and is increasing in usage
See chart of usage over time: https://wiki.openstreetmap.org/wiki/Tag:usage%3Dirrigation#Alternative_tagging I think "usage=irrigation" may be the best option. On 5/29/19, Joseph Eisenberg <[email protected]> wrote: >> Not sure about small rock-cut waterways with massive impermeable sides, >> are these ditches or canals or drains? > > We don't have these in the western USA, but generally our ditches are > dug out of the soil, so I would be surprised to see a feature tagged > as waterway=ditch if it were cut from bedrock or lined with stone. > > I'd think waterway=canal would be appropriate for these if they are > large enough. > > One tag that's already used is canal=qanat for "a gently sloping > underground channel or tunnel constructed to lead water from the > interior of a hill to a village below", found in the Middle East > > If there are small irrigation waterways that area lined with stone (or > concrete etc), we probably need a new tag, since waterway=drain is > pretty strongly associated with drainage, not irrigation, and > waterway=canal probably has a minimum width? > > > On 5/29/19, Martin Koppenhoefer <[email protected]> wrote: >> >> >> sent from a phone >> >>> On 29. May 2019, at 03:37, Joseph Eisenberg <[email protected]> >>> wrote: >>> >>> What, then, should be the distinguishing characteristic between >>> waterway=canal and waterway=ditch or =drain? Width or importance or >>> navigability, or should we still mention the usage as the main >>> difference? >> >> >> IIRR ditches were seen without construction like steel or concrete, just >> a >> man made depression to channel water, while drains are required to have >> their borders (and maybe base) constructed. >> >> Not sure about small rock-cut waterways with massive impermeable sides, >> are >> these ditches or canals or drains? >> >> Stating the usage explicitly might help interpretation of the data, or >> while >> we’re still mapping fragments of an incomplete network, although I would >> have guessed with a more mature mapping this could already be seen from >> looking at the network structure and flow directions? >> >> 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? >> >> Cheers, Martin >> _______________________________________________ >> Tagging mailing list >> [email protected] >> https://lists.openstreetmap.org/listinfo/tagging >> > _______________________________________________ Tagging mailing list [email protected] https://lists.openstreetmap.org/listinfo/tagging
