вс, 24 февр. 2019 г. в 02:56, Paul Allen <pla16...@gmail.com>:
> Yes, we can merge the tags and have drain for both. I'm still wondering why "drain", not "ditch", should be kept in the case of merging the tags. Cheers, Eugene вс, 24 февр. 2019 г. в 02:56, Paul Allen <pla16...@gmail.com>: > On Sat, 23 Feb 2019 at 23:33, Hufkratzer <hufkrat...@gmail.com> wrote: > >> On 23.02.2019 18:47, Paul Allen wrote: >> >> [...] As I see it, ditches are unlined. [...] >> >> >> I googled for "ditch lining irrigation" and got these examples for lined >> ditches: >> >> - >> http://www.northwestlinings.com/services-available/installation-services/irrigation-ditch-liner-system/ >> - http://www.skidmarkgeomembrane.com/Ditch-Lining.html - Irrigation >> Ditch Lining >> - http://www.smartditch.com/markets-agg-irrigation.html - "SmartDitch" >> > > They all appear to be conversion kits. For people who did their > irrigation on the cheap and > used a ditch to deliver the water to the irrigation ditches instead of > using a drain and then > found they were losing too much water. You can get away with a ditch for > delivering irrigation > water, but it will be inefficient. You can't use a drain at the edge of a > field to lower the water > table. > > Yes, we can merge the tags and have drain for both. And then have to > create a lined=yes/no > subtag to differentiate. Or we can use, as some suggest, ditch for narrow > and drain for wide, > and then have to create lined=yes/no and width=n (which might be useful > anyway). It seems silly > to move away from UK usage of ditch/drain and introduce ambiguities that > we then have to > resolve a different way. YMMV. > > -- > Paul > > _______________________________________________ > Tagging mailing list > Tagging@openstreetmap.org > https://lists.openstreetmap.org/listinfo/tagging >
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