[Tagging] RFC: pedestrian crossing as an area

[Graeme Fitzpatrick]

I'd agree with Brian that most crossings could easily be marked just as a
line across the road, tagged as one of the marked / unmarked crossings
options.

The crossing area idea would be useful though for "scramble crossings /
pedestrian scrambles": https://en.wikipedia.org/wiki/Pedestrian_scramble.

eg https://www.openstreetmap.org/edit#map=20/44.22791/-76.49555, which
should really have another "X"-crossing in the middle of the square? That
may be an easier way to do it though, rather than worrying about an area?

Looking at TI, it turns out that there are actually already 8
crossing=pedestrian_scramble mapped, although OP only shows 5:
https://overpass-turbo.eu/s/1f2K

Only 2 of those are what I was referring to though:
https://www.openstreetmap.org/edit?node=560440816#map=19/31.20696/121.40155
&
https://www.openstreetmap.org/edit?node=53098272#map=20/37.79920/-122.27136

Thanks

Graeme


On Fri, 14 Jan 2022 at 03:06, Brian M. Sperlongano <zelonewolf at gmail.com>
wrote:

> My gut reaction is that pedestrian crossings can be adequately modeled as
> a center line and width (similar to roads with width and/or lane tagging).
> While mappers are free to innovate and come up with new ways to map in
> increasingly greater detail and specificity, I think that the "approved"
> tag that ends up on the wiki after an approved proposal sends a specific
> signal to mappers.  And that signal is not just "this is the community
> recommendation on how to tag X" but also, and the point I want to express
> here, that "feature X should be mapped".
>
> I feel that a pedestrian crossing areas (in US English I'd describe this
> as "the area of a crosswalk") fits into a category that's increasingly
> described as "nano mapping".  I seem to recall somebody proposed to tag the
> area of individual road markings - the dashes and arrows and so forth
> painted on the road, and I see this as a similar "nano" feature.  I'm
> confident that there are plenty of other things left to map in the world
> before we need people individually tracing painted road markings just to
> keep busy, so there should be no rush to apply that green "Approved" label.
>
> Until there is some reasonable critical mass in terms of data consumer
> support and feature proliferation in the map, I think we should avoid
> approving tagging schemes for nano-mapping, and instead allow such mapping
> to continue growing organically in order to learn what innovations result
> from it.  The use of nano-mapped features is still in its infancy, and I
> suspect it would be a mistake to approve tagging for it until we're able to
> fully embrace how these features fit into the big picture and how the data
> consumer needs stack up against them.
>
> On Thu, Jan 13, 2022 at 11:46 AM Mateusz Konieczny via Tagging <
> tagging at openstreetmap.org> wrote:
>
>> Comments are welcome on
>>
>> https://wiki.openstreetmap.org/wiki/Proposed_features/pedestrian_crossing_as_an_area
>>
>> It is about a tagging for mapping of crossings in extreme detail.
>>
>> Feedback is welcomed especially as I have not noticed that there is no
>> accepted tagging
>> scheme for such features.
>>
>> I though that there is one and I am using it, but in
>> https://github.com/matkoniecz/lunar_assembler/issues/26 I was made aware
>> that I was mistaken.
>>
>> Review is especially appreciated now as I am not entirely sure whether I
>> will send
>> the proposal for voting.
>>
>> I am much more interested in arguments for/against
>> some solutions - or even the very idea of such mapping, than in yes/no
>> votes.
>>
>> Please do not wait with comments for a vote.
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