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<div class="moz-cite-prefix">On 4/23/14 10:14 AM, André Pirard
wrote:<br>
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<blockquote cite="mid:5357CAE3.4030008@gmail.com" type="cite">
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On 2014-04-22 23:46, Richard Welty wrote :<br>
<span>> i would like to add emergency (for emergency vehicles)
to the list of<br>
> vehicle types for the except tag.</span><br>
Supposing that emergency vehicles can do almost everything (who
would tell a fire van for example not to drive on the wrong side
over some distance or make a forbidden turn if that's to put out a
fire without endangering other road users), I think that routing
devices should apply special logic for them to disregard most
restrictions. Hence, what should be on the map instead is
restrictions that they should obey despite that, sort of telling
them "if you disregard this, you won't put out your fire".<br>
</blockquote>
if this is the case, then it needs to be explicit in the wiki <br>
so that routing engines can handle it.<br>
<br>
i'm not sure that it is generally the case. i have looked it up in<br>
New York State law and it is certainly true in this jurisdiction,
but<br>
for the US at least, it'll be state by state.<br>
<br>
the signage in some other states in the US for restricted U-turns
has<br>
an explicit authorization posted at each U-turn. i honestly don't<br>
have a feeling for how general the notion that emergency vehicles<br>
can ignore all access restrictions really is.<br>
<br>
richard<br>
<pre class="moz-signature" cols="72">--
<a class="moz-txt-link-abbreviated" href="mailto:rwelty@averillpark.net">rwelty@averillpark.net</a>
Averill Park Networking - GIS & IT Consulting
OpenStreetMap - PostgreSQL - Linux
Java - Web Applications - Search</pre>
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