Hey Markus, This is a very good example that I somehow forgot to add to any of my replies / the wiki. Thank you for reminding me!
There are certainly many crossings that have pedestrian signals but are tagged with the flavor du jour of crossing=marked because the latter can be mapped from aerial imagery and the former has to be verified on the ground. On Sun, May 19, 2019 at 10:55 AM Markus <selfishseaho...@gmail.com> wrote: > On Sun, 19 May 2019 at 18:32, <osm.tagg...@thorsten.engler.id.au> wrote: > > > > Personally, I can not remember having ever seen, in my whole life, a > signal controlled pedestrian crossing that does not have road markings, > excluding cases where there are temporarily no road markings at all because > they haven't been painted yet after the road has just been laid down or > resurfaced. > > > > [...] > > > > crossing=uncontrolled and crossing=zebra have been used a combined 1.25 > million times. In practical usage, they mean exactly the same thing, and > they have widespread software support already. Trying to replace them with > a 3rd value that still means exactly the same things is a classical case of > https://xkcd.com/927/ > > While it may be true that there aren't any signal controlled > pedestrian crossing without road markings, the problem with > zebra/marked using the same key as traffic_signals is that mappers > (those that don't visit the place, don't have local knowledge and > likely haven't read the documentation) see a marked crossing on the > aerial imagery and tag it crossing=zebra/marked even if there are > traffic lights -- sometimes they even retag a crossing=traffic_signals > to crossing=zebra/marked. I've already corrected dozens of them, but > there are constantly new ones being wrongly added or retagged. While > crossing=unmarked/{uncontrolled|zebra|marked}/traffic_signals > theoretically may work, it doesn't in practice. I think that only > moving traffic lights and road markings to separate keys will solve > this problem. > > Regards > > Markus > > _______________________________________________ > Tagging mailing list > Tagging@openstreetmap.org > https://lists.openstreetmap.org/listinfo/tagging >
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