[Accessibility] Mapping “turning nodules” in pedestrian crossings

Dave Dowding davedowding at gmail.com
Thu Aug 29 18:45:51 UTC 2019


Unfortunately I don't think that there is any better tag to describe them.
My dissertation was on using OSM for visually impaired people and I think
that was the only tag I found. I just did a quick search on overpass (
https://overpass-turbo.eu/s/LVF) and looked at
http://www.blind.accessiblemaps.org/index2.html and I found that the tag
isn't used much at all. Because OSM is global it might make sense to use
that tag because it is the standard tag but you could also create a new one
maybe traffic_signals:tactile=yes. What do other people think?

On Thu, 29 Aug 2019 at 17:31, Martin BODIN <martin.bodin at ens-lyon.org>
wrote:

> Hi,
> I currently live in London where there is a lot of pedestrian crossing
> with a special nodule / button hidden below a lot pedestrian crossing
> boxes. I would like to know how to map them well in OSM.
> These nodules are shown in this video:
> https://www.youtube.com/watch?v=fRPWlBAgSnw They are small buttons hidden
> below the box with the button to call the traffic lights. These nodules
> turn when it is safe to cross the road.
> The closest tag to it might be the vibration key:
> https://wiki.openstreetmap.org/wiki/Key:traffic_signals:vibration However,
> the word “vibration” technically describes something different (this nodule
> turns but does not vibrate, and it is positionated in a very specific
> location below). I thus fear that the “vibration” tag might be misleading,
> leading to people waiting with the hand on top of the box expecting it to
> vibrate in some ways instead of this particular behaviour.
> I am not blind myself and have no idea how to map this in the right way,
> which is why I am asking in this mailing list.
> Thanks for your help!
> Regards,
> Martin Constantino–Bodin.
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