[Tagging] Traffic signal warning lights?

[Warin]

On 13/1/22 12:36 pm, Paul Johnson wrote:
> On Wed, Jan 12, 2022 at 5:54 PM Graeme Fitzpatrick 
> <graemefitz1 at gmail.com <mailto:graemefitz1 at gmail.com>> wrote:
>
>     Going through some Osmose errors & spotted a set of these:
>     https://goo.gl/maps/oZSEARfLQZfwkAuP6
>     <https://goo.gl/maps/oZSEARfLQZfwkAuP6>, reported via Mapillary as
>     an "Unmapped traffic light"
>
>     They're not really traffic signals as such, so what should they be
>     mapped as?
>
>     Raised the question on the talk page:
>     https://wiki.openstreetmap.org/wiki/Talk:Tag:highway%3Dtraffic_signals#Traffic_signal_warning_lights
>     <https://wiki.openstreetmap.org/wiki/Talk:Tag:highway%3Dtraffic_signals#Traffic_signal_warning_lights>
>     but no real answer.
>
>     I'm thinking of highway=traffic_signals +
>     traffic_signals=advance_warning.
>
>     Any other thoughts or suggestions?
>
>
> Single aspect traffic signals like those seem like a good candidate 
> for highway=traffic_signals and traffic_signals=blinker. I tend not to 
> map these as they're usually of insignificant interest compared to the 
> other possibilities for tagging, such as the signal ahead sign or the 
> stop sign they're mounted at.


I have seen 2 of them that I can recall.  I noticed the flashing lights 
but have not bothered to read any signs as there function is fairly 
obvious.

They warn the approaching traffic that the traffic lights (that cannot 
be seen from these warning lights) are red, or about to be red. As such 
they do not constantly flash.

In one location a few people were killed by a truck going through the 
red lights, I know this location well. In both those locations they 
would be significant safety factors for trucks.

In Australia I cannot recall any blinking lights attached to a simple 
stop sign. There are some red flashing lights at level railway crossings 
that have a sign 'Stop when Lights Flash" but that is about as close as 
I have seen.


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