This will not suit the situation in Nederland, as explained earlier in this thread. We would have tons of exceptions on all the ‘ usually’s’ and ‘ typically’s’.
Fr gr Peter Elderson > Op 23 feb. 2019 om 00:09 heeft Graeme Fitzpatrick <graemefi...@gmail.com> het > volgende geschreven: > > >> On Fri, 22 Feb 2019 at 20:48, Eugene Podshivalov <yauge...@gmail.com> wrote: > >> The primary concern of mine about the current definitios of drain and ditch >> is that some people are differentiating them by size. >> >> or stay close to dictionary definitions which assumes some overlapping >> between the meanings. Here is an example: >> drain - a narrow artificial open-air channel that takes away waste liquids >> or rainwater >> ditch - a narrow channel dug at the side of a road or field to hold, bring >> or carry away water > > I'd agree that you can't differentiate between drain & ditch based on size > (except they're both smaller / narrower than a canal), but you also can't > pick them based on locations - either of them can run alongside a road, or go > across a field > > I'd suggest we just stick with the simple definitions based on lined / > unlined that I thought we all sort of agreed on, way back up there ^ :-) > > =canal: Use waterway=canal for large man-made open flow (free flow vs pipe > flow) waterways used to carry useful water, usually for transportation, but > also for hydro-power generation or irrigation purposes > > =drain: Use waterway=drain for artificial waterways, typically lined with > concrete or similar, usually used to carry water for drainage or irrigation > purposes. > > =ditch: Use waterway=ditch for artificial waterways, typically unlined, > usually used to remove storm-water or similar from nearby land. They may > contain little water or even be dry most of the year – to mark this > intermittent=yes may be used. > > Thanks > > Graeme > _______________________________________________ > Tagging mailing list > Tagging@openstreetmap.org > https://lists.openstreetmap.org/listinfo/tagging
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