[Tagging] Billboard or something else

[Jonathon Rossi]

On Wed, Oct 30, 2019 at 11:19 PM Martin Koppenhoefer <dieterdreist at gmail.com>
wrote:

> > Il giorno 30 ott 2019, alle ore 13:09, Jonathon Rossi <
> jono at jonorossi.com> ha scritto:
> >
> > I didn't say these signs had to display messages that must be obeyed
> just that they often do.
>
> what I meant was that we might want to distinguish between those that show
> information and those that show traffic signs to which you must obey.
>

Okay, might be useful, but how does a mapper know what a road authority
will do with a variable message sign? If it has only been observed with
travel time messages and other informational messages, then how do you
verify it won't be used for more in the 1% of cases, and does it actually
matter?

I'd be inclined to have all big matrix panels tagged
traffic_sign=variable_message, with Variable Speed Limit Signs and Lane Use
Signals different traffic sign types, maybe traffic_sign=variable_speed and
traffic_sign=lane_control (I've not checked taginfo to see what people are
already using) which would allow navigation apps to notify a driver about a
variable speed limit zone (or does that belong on the highway?), however
this is getting out of scope of Graeme's original question.

-- 
Jono
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