<html><head></head><body><div style="font-family: Verdana;font-size: 12.0px;"><div>Yes I agree to your proposes.</div>
<div>So I conclude that an under-tag for highway=traffic_signals to mark that the lights are controlling a crossing only is not really needed?</div>
<div> </div>
<div>Or maybe could it just be an addition to highway=traffic_signals, no matter whether the highway=traffic_signals-osm-node appears together with crossing=traffic_signals on the same node or it doesn't?</div>
<div> </div>
<div>This was one original purpose for the tag traffic_signals=crossing_on_demand, but probably I will change it to traffic_signals=crossing_only, which shows the purpose more. It means that there are traffic lights which do control only a crossing, not really matter whether it's on demand but most of them will be, so or so.</div>
<div>
<div>
<div>I think it might be needed for the case you mentioned "if a single node on the main street: highway=traffic_signals + crossing=traffic_signals + button_operated=yes, but this doesn't indicate that the minor cross street traffic is not controlled by the light"</div>
<div> </div>
<div>This would be said by traffic_signals=crossing_only then. If I am right...</div>
<div> </div>
<div>My point is, that traffic_signals=* is just an addition. Of course it should make sense, but adding this tag won't change the way how to map traffic-light controlled crossing OR junction anyway. It would be an addition on information, I think.</div>
<div> </div>
<div>--Lukas</div>
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<div style="margin:0 0 10px 0;"><b>Gesendet:</b> Donnerstag, 16. April 2020 um 03:48 Uhr<br/>
<b>Von:</b> "Jarek Piórkowski" <jarek@piorkowski.ca><br/>
<b>An:</b> tagging@openstreetmap.org<br/>
<b>Betreff:</b> Re: [Tagging] Feature Proposal - RFC - traffic_signals=crossing_on_demand</div>
<div name="quoted-content">On 15/04/2020 09:27, John Willis via Tagging wrote:<br/>
>> On Apr 15, 2020, at 8:34 PM, Paul Allen wrote:<br/>
>> The traffic lights control the junction<br/>
><br/>
> We have a lot of traffic light controlled crossings in Japan that are<br/>
> just for a crosswalk, while the smaller intersecting road is stop-sign<br/>
> controlled for cars. Only the crosswalk is controlled by a signal that<br/>
> stops traffic on the larger road - only when pressed. There are many of<br/>
> these.<br/>
><br/>
> <a href="https://www.openstreetmap.org/way/790227211" target="_blank">https://www.openstreetmap.org/way/790227211</a><br/>
> <a href="https://www.openstreetmap.org/way/729071392" target="_blank">https://www.openstreetmap.org/way/729071392</a><br/>
<br/>
Oh! Those also exist (or at least existed a couple of years ago) in<br/>
British Columbia, they had a special flashing-green indication on the<br/>
main street.<br/>
<br/>
Example <a href="https://www.mapillary.com/map/im/naoPubCHkocvtwgoZ2VcAA" target="_blank">https://www.mapillary.com/map/im/naoPubCHkocvtwgoZ2VcAA</a> (note<br/>
the lack of lights controlling the minor cross street - the cross<br/>
streets have only a stop sign - and the lights look out in that photo<br/>
because it's on the off-phase of its flashing).<br/>
<br/>
I don't know if there is a set tagging standard for them, I'm not<br/>
finding anything specific in quick checks of Vancouver east side<br/>
intersections right now.<br/>
<br/>
To my eyes they would be:<br/>
<br/>
- if a single node on the main street: highway=traffic_signals +<br/>
crossing=traffic_signals + button_operated=yes, but this doesn't<br/>
indicate that the minor cross street traffic is not controlled by the<br/>
light<br/>
- if the crossing is only on one side of the intersection, as shown in<br/>
the Japanese examples: highway=traffic_signals +<br/>
crossing=traffic_signals + button_operated=yes at the crossing node(s)<br/>
- if the car stop lines are on either side of the minor street<br/>
intersection, using more nodes: on the main street, at car stop lines,<br/>
highway=traffic_signals + direction=*; on the main car way, at<br/>
crosswalk locations highway=crossing + crossing=traffic_signals; on<br/>
the minor cross street, at the stop line, highway=stop + direction=*;<br/>
and no highway=traffic_signals on the intersection node between the<br/>
two streets<br/>
<br/>
> - crosswalks for traffic signal controlled intersections where the light<br/>
> is _only_ sensor triggered - magnet loop in the road and a push-button<br/>
> for pedestrians. there are very few of these. a little sign says “push<br/>
> button” - and if you don’t press it, you will wait until a car comes.<br/>
Isn't that simply button_operated=yes ?<br/>
<br/>
--Jarek<br/>
<br/>
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