[Tagging] traffic_signals:lanes? (specific signal types for certain lanes)

[Albert Pundt]

I mention the linked intersection as continuous green (despite no specific
signage saying it is) because there's no stop line over the main lanes,
only the turn lane, and no pedestrian crossing is allowed across the US
22/30 mainline. There's no other situation that would make that light turn
red for the through lanes. The only reason the full signals exist there at
all is because of a MUTCD requirement.

On Wed, Dec 27, 2017 at 8:18 AM, Paul Johnson <baloo at ursamundi.org> wrote:

> On Wed, Dec 27, 2017 at 4:04 AM, Tom Pfeifer <t.pfeifer at computer.org>
> wrote:
>>
>>
>> As for your continuous green light, you might have always observed that
>> it is on, maybe because you have never been there at a time when it might
>> be off
>
>
> In the US, where a light is continuous green, I've only ever seen it
> implemented one of two ways:
>
>    - The signal that has the continuous green only has one aspect.  The
>    only way it's going dark is in a power outage or the bulb blows.
>    - The signal is a three-aspect, but only the green is wired up, and
>    there is a sign next to it that explicitly says "This light is always
>    green".
>
> I've also seen lights that are continuous red, again, only in two
> different ways:
>
>
>    - The signal that is continuous red is two aspect, the top one is
>    steady and the bottom one has a blinker bulb; a sign indicates that you may
>    only turn right on flashing red after stopping or no turn on steady red.
>    The only signals I knew that did this has been replaced by a stop sign and
>    a right turn only sign.
>    - The signal is a red globe and has a right turn only sign or a sign
>    that reads "This light does not turn green."  This only makes sense where
>    right turn on red after stop is a thing that exists.
>
>
>
> _______________________________________________
> Tagging mailing list
> Tagging at openstreetmap.org
> https://lists.openstreetmap.org/listinfo/tagging
>
>


-- 
—Albert
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.openstreetmap.org/pipermail/tagging/attachments/20171227/9e67c253/attachment.html>