> Most existing uses of man_made=qanat by the way are in combination with waterway=canal.
Thank you for mentioning this. There are only 5 ways with man_made=qanat, without waterway=* - https://overpass-turbo.eu/s/Viq I will update the proposal page with this information. So there is no debate about whether or not to tag these features with waterway=canal. We are deciding whether or not the additional tag should be man_made=qanat or canal=qanat. Since waterway=canal is currently used for all kinds of irrigation canals and aqueducts, it makes sense to consider these irrigation features to be a type of canal. I have previously considered whether or not it might be sensible to create a whole new value of waterway=* for aqueducts and irrigation canals, but that does not seem to solve any particular problems: irrigation canals can be as narrow as 20 cm or as wide as 20 meters, as can aqueducts used for drinking water, so tagging usage=irrigation and width=*, while using the existing main tag, is probably reasonable. – Joseph Eisenberg On Sat, Jun 20, 2020 at 5:17 AM Christoph Hormann <[email protected]> wrote: > > I think this is a good idea. Both in the sense of establishing a distinct > tagging for it that does not engross qanats with other types of underground > waterways and in the sense of using a non-English and non-European term > where the most descriptive and clear term comes from a non-European > language. We have other cases of such tags in OSM but still in a proposal > process which is dominantly discussed in English this is rare and kind of a > litmus test for how culturally diverse tagging in OSM can be and if the > cultural geography of non-European regions can be mapped in the > classifications used locally just as we are used to doing it in Europe and > North America. > > Most existing uses of man_made=qanat by the way are in combination with > waterway=canal. > > -- > Christoph Hormann > http://www.imagico.de/ > > _______________________________________________ > Tagging mailing list > [email protected] > https://lists.openstreetmap.org/listinfo/tagging >
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