On Tue, 14 Apr 2020 at 06:23, <lukas-...@web.de> wrote:
>
> To response on the mentioning:
> "Currently the wiki page says "traffic_signals=crossing_on_demand makes
> it easy to mark all traffic lights which do only control a crossing",
> again I personally find highway=traffic_signals +
> crossing=traffic_signals sufficient for that"
>
> Yes, that's true. I agree with that, but my point is, that not only those 
> traffic lights, which do control only a crossing, a mapped like this. Mappers 
> use it just as a shortcut for traffic light and crossing, no matter in which 
> relation between each other they are. That is not wrong, but it does not 
> really show for what the lane traffic lights are "resposible". Please have a 
> look at https://www.openstreetmap.org/node/1339612951 and many many others in 
> this city. The traffic lights of course control the crossing, yes, but they 
> control the junction nearby, too.
> So looking at highway=traffic_signals + crossing=traffic_signals on the same 
> node also makes it not possible to see only those crossings where n junction 
> or something else is, as I see it at the moment.

Hm, that's tagging I haven't seen before. My suggestion would be to
not tag like that (the proposed new tag would suggest retagging of
this anyway). My understanding of the detailed-intersection-tagging
norms was that this should have highway=traffic_signals on the stop
line for cars, and highway=crossing+crossing=traffic_signals on the
middle of the pedestrian crossing - e.g.
https://www.openstreetmap.org/node/1822620449 or
https://www.openstreetmap.org/node/393547028

--Jarek

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