[Talk-GB] Standalone signalled pedestrian crossing tagging

[Brian Prangle]

Personally I think it's overkill

On 10 March 2017 at 13:12, Adam Snape <adam.c.snape at gmail.com> wrote:

> Thanks Brian,
>
> That's what I'd observed to be the norm around here too. But, is the more
> verbose option to be encouraged because it explicitly notes the presence of
> traffic lights for road traffic (crossing=traffic_signals just means
> signals for pedestrians), or is it just unnecessary complexity (the
> presence of vehicle traffic signals could implied from the presence of
> pedestrian ones) ?
>
> Regards,
>
> Adam
>
> On 10 March 2017 at 12:55, Brian Prangle <bprangle at gmail.com> wrote:
>
>> Hi Adam
>>
>> I think option 1 is the consensus way to map these, certainly so in the
>> West Midlands. Option 3 is more verbose but not incorrect. Option 2 omits
>> the salient feature which is highway=crossing and so is not recommended
>>
>> Regards
>>
>> Brian
>>
>> On 9 March 2017 at 12:23, Adam Snape <adam.c.snape at gmail.com> wrote:
>>
>>> Hi
>>>
>>> I recently noticed this changeset comment:
>>> https://www.openstreetmap.org/changeset/46680980
>>>
>>> It seems that the Wiki suggests three alternative ways of mapping a
>>> pedestrian traffic-light controlled crossing:
>>> 1. Entire crossing mapped as a node: highway
>>> <https://wiki.openstreetmap.org/wiki/Key:highway>=crossing + crossing
>>> <https://wiki.openstreetmap.org/wiki/Key:crossing>=traffic_signals
>>> <https://wiki.openstreetmap.org/wiki/Tag:crossing%3Dtraffic_signals>
>>> 2. Entire crossing mapped as a node (alternative): highway
>>> <https://wiki.openstreetmap.org/wiki/Key:highway>=*traffic_signals* +
>>> crossing <https://wiki.openstreetmap.org/wiki/Key:crossing>=
>>> traffic_signals
>>> <https://wiki.openstreetmap.org/wiki/Tag:crossing%3Dtraffic_signals>
>>> 3. Crossing mapped separately and tagged highway
>>> <https://wiki.openstreetmap.org/wiki/Key:highway>=crossing
>>> <https://wiki.openstreetmap.org/wiki/Tag:highway%3Dcrossing> + crossing
>>> <https://wiki.openstreetmap.org/wiki/Key:crossing>=traffic_signals
>>> <https://wiki.openstreetmap.org/wiki/Tag:crossing%3Dtraffic_signals>
>>> Traffic lights tagged: highway
>>> <https://wiki.openstreetmap.org/wiki/Key:highway>=*traffic_signals* +
>>> crossing <https://wiki.openstreetmap.org/wiki/Key:crossing>=no +
>>> traffic_signals:direction
>>> <https://wiki.openstreetmap.org/wiki/Key:traffic_signals:direction>=forw
>>> ard/backward
>>>
>>> According to the Wiki (https://wiki.openstreetmap.or
>>> g/wiki/Tag:highway%3Dtraffic_signals), the latter is strongly
>>> recommended:
>>>
>>> Historically I've tended to use the specific UK shortcuts eg.
>>> highway=crossing crossing=pelican but I'm happy to change if the consensus
>>> is that any of the above methods are to be preferred. I've never been happy
>>> that crossings aren't rendered with a traffic light symbol but have no wish
>>> to tag for the renderer. My worry with Option 3 is that some routing
>>> programs might view it as two (or even three) separate sets of traffic
>>> lights.
>>>
>>> Any advice gratefully received,
>>>
>>> Adam
>>>
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>>>
>>>
>>
>
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