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<p>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.</p>
<p>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?</p>
<p>//colin</p>
<p>On 2015-11-02 08:05, Gerd Petermann wrote:</p>
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<p>I also liked the traffic_sign=variable, but now I think</p>
<p>we have to separate those traffic_signs from pure informational</p>
<p>displays showing e.g. temperature, wind, or other weather conditions, as well </p>
<p>as traffic status (traffic jam, tunnel closed,free parking places and so on)</p>
<p>from those which will always show a speed limit. </p>
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<p>I think the first group is not a traffic_sign=*, it is information=*</p>
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<p>For the 2nd group traffic_sign=* is appropriate, maybe like this?</p>
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<p>traffic_sign=speed_limit</p>
<p>speed_limit=variable</p>
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<p>AFAIK, in Germany, those traffic_signs are only used on major </p>
<p>roads (motorways, maybe trunks).</p>
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<p>Gerd</p>
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<div id="divRplyFwdMsg" dir="ltr"><span style="font-size: 11pt; color: #000000; font-family: Calibri, sans-serif;"><strong>Von:</strong> John Eldredge <john@jfeldredge.com><br /><strong>Gesendet:</strong> Montag, 2. November 2015 02:13<br /><strong>An:</strong> Tag discussion, strategy and related tools<br /><strong>Betreff:</strong> Re: [Tagging] How to tag a "overhead electronic display" ?</span>
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<p style="margin: 0 0 1em 0; color: black;">That sounds reasonable.</p>
<p style="margin: 0 0 1em 0; color: black;">-- <br /> John F. Eldredge -- john@jfeldredge.com<br /> "Darkness cannot drive out darkness; only light can do that. Hate cannot drive out hate; only love can do that." -- Martin Luther King, Jr.</p>
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<p style="color: black; font-size: 10pt; font-family: Arial,sans-serif; margin: 10pt 0;">On October 29, 2015 4:03:49 AM Paul Johnson <baloo@ursamundi.org> wrote:</p>
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<div class="gmail_quote">On Thu, Oct 29, 2015 at 3:57 AM, Martin Koppenhoefer <span> <<a title="Ctrl+Klicken oder tippen Sie, um dem Link zu folgen." href="mailto:dieterdreist@gmail.com">dieterdreist@gmail.com</a>></span> wrote:<br />
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<div class="gmail_quote">2015-10-29 9:33 GMT+01:00 Paul Johnson <span><<a href="mailto:baloo@ursamundi.org">baloo@ursamundi.org</a>></span>:<br />
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<div dir="ltr">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</div>
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<span class=""><br /><br /></span>please, let's continue to avoid abbreviations. "pcms" is cryptic to me and likely to many others too. </div>
<div class="gmail_extra">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). <a href="https://en.wikipedia.org/wiki/Variable-message_sign"> https://en.wikipedia.org/wiki/Variable-message_sign</a></div>
<div class="gmail_extra">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).</div>
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<div> How about <span style="font-family: monospace, monospace;">traffic_sign=variable</span>?</div>
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