[Talk-GB] Standalone signalled pedestrian crossing tagging

[Adam Snape]

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>
=forward/backward

According to the Wiki (
https://wiki.openstreetmap.org/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
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.openstreetmap.org/pipermail/talk-gb/attachments/20170309/ffd855f3/attachment.html>