Re: natural=sinkhole - this tag has been used 9908 times: https://taginfo.openstreetmap.org/tags/?key=natural&value=sinkhole
It is widely distributed: https://taginfo.openstreetmap.org/tags/natural=sinkhole#map In contrast, natural=sink_hole appears to have only been used in 2 areas in England, mostly added 1 year ago by a certain mapper: https://taginfo.openstreetmap.org/tags/natural=sink_hole#map - I assume this was a mistake. – Joseph Eisenberg On Wed, Jul 22, 2020 at 8:27 AM Tod Fitch <t...@fitchfamily.org> wrote: > It certainly would not be my pick of terms, but it seems manhole=drain has > an appropriate definition in the wiki [1] and considerable use [2] for a > place that water disappears into a man made structure. Most of them around > here are not circular and many appear to be too small for a person to get > into when the grate is removed. But OSM has odd tagging for other things so > why not this too? > > I will start tagging that where the surface drainage ditches disappear > into the ground. I wonder if QA tools like Osmose will stop nagging me > about those waterways. > > We are still left with the situation where an ephemeral waterway fans out > over the desert and disappears. We need some sort of tagging to indicate > this is not a mistake and I’ve not seen a tag or value come up in this > discussion that has any existing use or consensus in the list. > > These are definitely not sink holes and shouldn’t be tagged as such. > > Digression: The wiki page for natural=sinkhole [3] says that it is a > tagging error to use natural=sink_hole. When I look at taginfo I see nearly > 2000 occurances of natural=sink_hole and none for natural=sinkhole [4]. I > guess the write of the wiki page disagreed with the spelling of the most > used spelling of the tag value. > > Anyway, back to waterways dissipating in the desert. Where the flowing > water disappears varies considerably from storm to storm so maybe it > shouldn’t even be a tag on the last node of the way. Maybe the last section > of the way could have a tag instead? > > Would a tag on the way be better or worse than a tag on the last node on > the way? > > Maybe a discussion on this will turn up a possible way to map the > situation. > > Thank you for the responses so far! > > —Tod > > [1] https://wiki.openstreetmap.org/wiki/Tag:manhole%3Ddrain > [2] https://taginfo.openstreetmap.org/search?q=manhole%3Ddrain > [3] https://wiki.openstreetmap.org/wiki/Tag:natural%3Dsinkhole > [3] https://taginfo.openstreetmap.org/search?q=natural%3Dsink > > > On Jul 20, 2020, at 3:19 PM, Volker Schmidt <vosc...@gmail.com> wrote: > > Manhole=drain has more than 2000 uses, most of them seem to be water > drainage grids with no access for humans. > But if you want to retag them with something different you would need to > do this manually. > I would not touch it, even if it is an unfortunate tagging. > > On Mon, 20 Jul 2020 at 21:33, Alan Mackie <aamac...@gmail.com> wrote: > >> >> >> On Mon, 20 Jul 2020 at 11:28, Paul Allen <pla16...@gmail.com> wrote: >> >>> On Mon, 20 Jul 2020 at 10:59, Volker Schmidt <vosc...@gmail.com> wrote: >>> >>>> manhole=drain is widely used in OSM for water drainage grids, that are >>>> not suitable for people to entr - se the photo on the wikipage >>>> <https://wiki.openstreetmap.org/wiki/Tag:manhole%3Ddrain> >>>> >>> >>> People have used manhole=drain for that purpose and the wikipage >>> for manhole=drain documents that use. However, that photo appears >>> to be of a UK storm drain which is not a manhole by my definition >>> (too small for entry by a person) or by the wiki's definition for >>> Key:manhole which states "Hole with a cover that allows access to >>> an underground service location, just large enough for a human to climb >>> through." >>> >>> In my opinion we should deprecate manhole=drain except where >>> it really is large enough for access by a person. We need a >>> better tag. Well, two tags. One for storm drains and one >>> for sinks that are too small to merit natural=sinkhole with >>> any of the current sinkhole=* types. Oh, and a tag for >>> spreads, too. >>> >>> -- >>> Paul >>> >> >> I think we also need one for "entrances" to pipes/tunnels of unknown >> extent where the entrance is by horizontal movement of the water rather >> than by falling into a hole. The presence/absence of gratings or mesh may >> be useful for these too. >> >> >> >> _______________________________________________ >> Tagging mailing list >> Tagging@openstreetmap.org >> https://lists.openstreetmap.org/listinfo/tagging >> > _______________________________________________ > Tagging mailing list > Tagging@openstreetmap.org > https://lists.openstreetmap.org/listinfo/tagging > > > _______________________________________________ > Tagging mailing list > Tagging@openstreetmap.org > https://lists.openstreetmap.org/listinfo/tagging >
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