Slippery terrain. In the sense of definitions. Concerning the tunnel=flooded wiki page:
The symbol shows free flowing water (air above the surface), wherea the first example is for a headrace where "no air can get inside" Why is this situation not tagged as pipeline? (see last row in this table <https://wiki.openstreetmap.org/wiki/Tag:man_made%3Dpipeline#Usage)>?) The page states: ... tunnel <https://wiki.openstreetmap.org/wiki/Key:tunnel>=yes <https://wiki.openstreetmap.org/wiki/Tag:tunnel%3Dyes> where a path is usually intended for human to safely pass and where water level is usally controlled for safety reasons " I don't find areference to this implied meaning of tunnel=yes Many, if not the majority of the UK Inland Waterways canals have no towpath. Other comments on the key "tunnel", referring to taginfo "tunnel=" <https://taginfo.openstreetmap.org/search?q=tunnel%3D>: Absence of "tunnel= *" means: "this way is not in a tunnel of any type" "tunnel=yes" on a way means: "this way is in a tunnel of some type" It looks as if tunnel:type <https://taginfo.openstreetmap.org/keys/tunnel%3Atype> is practially not used We use instead tunnel= * <https://taginfo.openstreetmap.org/search?q=tunnel%3D> to indicate the type of tunnel. This tagging is unfortunate, but in line with the (original) bridge approach tunnel=culvert is the most frequent value: 1208667 uses tunnel=flooded is rare in comparison; 2060 uses There is also 3337 instances of tunnel=covered, which, at least in Italy (140) seem mainly tagging errors Volker <https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail> Virus-free. www.avast.com <https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail> <#m_-1238100284516781063_m_8219448373121648817_DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2> On Sun, 22 Mar 2020 at 01:04, Martin Koppenhoefer <dieterdre...@gmail.com> wrote: > > > sent from a phone > > > On 22. Mar 2020, at 00:46, Joseph Eisenberg <joseph.eisenb...@gmail.com> > wrote: > > > > How safe for walking does the tunnel have to be? > > > waterways often will have quite different levels depending on the > atmospheric conditions in the past days and weeks in the upstream area. > > When does it have to be safe? 99.9% of the year? At all times? 70%? > > Cheers Martin > _______________________________________________ > Tagging mailing list > Tagging@openstreetmap.org > https://lists.openstreetmap.org/listinfo/tagging > <https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail> Virus-free. www.avast.com <https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail> <#m_-1238100284516781063_DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2>
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