[Tagging] How to tag a "overhead electronic display" ?

[Gerd Petermann]

I see no need to separate mechanical from others in the major tag like traffic_sign=*.

I see no problem to add the information with another tag, maybe display_type=*


Gerd

________________________________
Von: Colin Smale <colin.smale at xs4all.nl>
Gesendet: Montag, 2. November 2015 08:23
An: tagging at openstreetmap.org
Betreff: Re: [Tagging] How to tag a "overhead electronic display" ?






I'm sure I have seen combinations as well - big black LED panels which can show information including (for example) temporary/emergency speed limits if required.

Is there a need to distinguish between mechanical and electronic signs, which can only show a very limited range of signs for which they have been specially constructed? And electronic signs with a more generic capability which can show "anything", possibly with a limited range of colours?

//colin

On 2015-11-02 08:05, Gerd Petermann wrote:

I also liked the traffic_sign=variable, but now I think

we have to separate those traffic_signs from pure informational

displays showing e.g. temperature, wind, or other weather conditions, as well

as traffic status (traffic jam, tunnel closed,free parking places and so on)

from those which will always show a speed limit.



I think the first group is not a traffic_sign=*, it is information=*



For the 2nd group traffic_sign=* is appropriate, maybe like this?



traffic_sign=speed_limit

speed_limit=variable



AFAIK, in Germany, those traffic_signs are only used on major

roads (motorways, maybe trunks).



Gerd

________________________________
Von: John Eldredge <john at jfeldredge.com>
Gesendet: Montag, 2. November 2015 02:13
An: Tag discussion, strategy and related tools
Betreff: Re: [Tagging] How to tag a "overhead electronic display" ?


That sounds reasonable.

--
John F. Eldredge -- john at jfeldredge.com
"Darkness cannot drive out darkness; only light can do that. Hate cannot drive out hate; only love can do that." -- Martin Luther King, Jr.

On October 29, 2015 4:03:49 AM Paul Johnson <baloo at ursamundi.org> wrote:

On Thu, Oct 29, 2015 at 3:57 AM, Martin Koppenhoefer <dieterdreist at gmail.com<mailto:dieterdreist at gmail.com>> wrote:

2015-10-29 9:33 GMT+01:00 Paul Johnson <baloo at ursamundi.org<mailto:baloo at ursamundi.org>>:
I think we'd have to invent a tag.  I only know them to be called a "programmable changeable message sign", so I'd probably tag it traffic_sign=pcms



please, let's continue to avoid abbreviations. "pcms" is cryptic to me and likely to many others too.
Wikipedia has an article about them called "variable-message sign" (IMHO sounds slightly nicer, leads to a shorter value and includes "non-programmable" signs: traffic_sign=variable-message_sign, even if the hyphen-underscore mix might lead to minor tagging inconsistencies). https://en.wikipedia.org/wiki/Variable-message_sign
The article also states that a common name in the UK is "matrix_sign" (is ok as well, focusing more on the physical aspect than on the function).

 How about traffic_sign=variable?
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