On Fri, Aug 17, 2018 at 12:16 PM, SelfishSeahorse <[email protected] > wrote:
> > Actually, it's only drain that doesn't seem to make sense > semantically, but ditch seems to be fine for smaller canals used for > drainage and irrigation, at least according to the definitions by > Wikipedia[^1] and the Cambridge Dictionary[^2]. > As used by Ordnance Survey in the UK, "drain" is what most of us (even in the UK) think of as a ditch. I'm not sure if a (smaller) mill race can also be called a ditch, I wouldn't think of a mill race as a ditch. To my mind a ditch is not about transporting water from A to B and especially not for generating mechanical power. I wouldn't call a mill race a canal, either, but it seems to be closer in definition than ditch is. > but i think it makes sense to have at least two tags for man-made channels > of different width. > Not if width=* can do the job. Not if it's possible to draw an outline of the bank. Both are possible. It's just that current OSM carto doesn't honour them in this situation. * waterway=creek - small to medium-sized natural stream (1-3 m wide) > That is not UK usage. See https://en.wiktionary.org/wiki/creek The only word I can find meaning large stream is "beck." Or you could have "brook" for small stream. Giving either river/beck/stream or river/stream/brook. Or we just stick with river/stream. Especially as we don't have a meaningful definition of the difference (how far can you jump). All this is complicated by the fact that what starts out as a brook often turns into a stream which can turn into a river, and is named "River X" or "Afon X" (if you're Welsh") all the way from the mouth to the dripping tap in somebody's back yard (spot the old TV comedy reference). -- Paul
_______________________________________________ Tagging mailing list [email protected] https://lists.openstreetmap.org/listinfo/tagging
