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That description is wrong and should be corrected. The wiki states
in its main text "A traffic island is a structure separating at
least two lanes of a highway for a short distance."<br>
Which makes sense, since you can have a highway with two ways in the
same direction, split with a traffic island in the middle.<br>
<br>
Regards,<br>
António.<br>
<br>
<br>
<div class="moz-cite-prefix">Às 14:06 de 28/04/2021, Volker Schmidt
escreveu:<br>
</div>
<blockquote type="cite"
cite="mid:CALQ-OR7RJh4UXXC3_Ka2R-GhsimMb_C3g4H4sL7W_R2v7BtLhQ@mail.gmail.com">
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<div dir="ltr">
<div>highway=traffic_island has no wiki page and 500 uses in
Taginfo.</div>
<div>traffic_calming=island is not applicable for a roundabout
centerpiece. The wiki page traffic_calming clearly states: "
<ul>
<li><tt dir="ltr" class="gmail-mw-content-ltr"
style="background:rgb(238,238,255) none repeat scroll 0%
0%;font-size:1em;line-height:1.6"><a
class="gmail-mw-selflink gmail-selflink"
moz-do-not-send="true">traffic_calming</a>=<a
href="https://wiki.openstreetmap.org/wiki/Tag:traffic_calming%3Disland"
title="Tag:traffic calming=island"
moz-do-not-send="true">island</a></tt></li>
</ul>
<dl>
<dd>
<div class="gmail-floatleft"><a
href="https://wiki.openstreetmap.org/wiki/File:Trafficcalming-island.jpg"
class="gmail-image" moz-do-not-send="true"><img
alt="Trafficcalming-island.jpg"
src="https://wiki.openstreetmap.org/w/images/thumb/3/30/Trafficcalming-island.jpg/120px-Trafficcalming-island.jpg"
moz-do-not-send="true" width="120" height="80"></a></div>
</dd>
<dd>An island is a small area that temporarily separates two
different directions of traffic.</dd>
<dt>In a roundabout there are no different directions of
traffic, as it is one-way by definition.<br>
</dt>
<dt>If we want to map the way how the centerpiece is
planted, we should use the same tagging as we use for
normal land cover. For grass it should, landcover=grass,
if it's planted with flowers and bushes it becomes a
leisure=garden. <br>
</dt>
<dt>If there is a kerb that can be tagged a barrier=kerb.</dt>
<dd><br>
</dd>
</dl>
</div>
</div>
<br>
<div class="gmail_quote">
<div dir="ltr" class="gmail_attr">On Wed, 28 Apr 2021 at 16:38,
Peter Elderson <<a href="mailto:pelderson@gmail.com"
moz-do-not-send="true">pelderson@gmail.com</a>> wrote:<br>
</div>
<blockquote class="gmail_quote" style="margin:0px 0px 0px
0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
<div dir="ltr">I think the central island has a traffic
function, but not a routing function. The routing function
is in the junction tag of the roundabout way.
<div><br>
</div>
<div>For road-builders the central Island is definitely an
important feature, as are e.g. the splitting Islands,
refuge islands, truck apron (the tilted strips around the
Islands where truck wheels are tolerated). </div>
<div><br clear="all">
<div>
<div dir="ltr">Peter Elderson</div>
</div>
<br>
</div>
</div>
<br>
<div class="gmail_quote">
<div dir="ltr" class="gmail_attr">Op wo 28 apr. 2021 om
16:12 schreef Dave F via Tagging <<a
href="mailto:tagging@openstreetmap.org" target="_blank"
moz-do-not-send="true">tagging@openstreetmap.org</a>>:<br>
</div>
<blockquote class="gmail_quote" style="margin:0px 0px 0px
0.8ex;border-left:1px solid
rgb(204,204,204);padding-left:1ex">
<div> I don't see it as part of the highway. The road of a
roundabout doesn't interact with; it goes *around* it.
Routers know they're on a roundabout because of the
junction= tag.<br>
<br>
They're not really designed to be accessible by foot as
per your wiki pages. Most in my locale are municipally
maintained grass so I just mark it with landuse=grass.<br>
<br>
DaveF <br>
<br>
<div>On 27/04/2021 22:32, Allroads wrote:<br>
</div>
<blockquote type="cite">
<div dir="ltr">
<div
style="font-size:12pt;font-family:Calibri;color:rgb(0,0,0)">
<div>Roundabout.</div>
<div> </div>
<div>Is the center_island of a roundabout a type
of a area:highway=traffic_island?</div>
<div> </div>
<div>I think it is.</div>
<div> </div>
<div>What types of traffic_island can be used?</div>
<div> </div>
<div> </div>
<div><a
title="https://en.wikipedia.org/wiki/Traffic_island"
href="https://en.wikipedia.org/wiki/Traffic_island" target="_blank"
moz-do-not-send="true">https://en.wikipedia.org/wiki/Traffic_island</a></div>
<div><a
title="https://en.wikipedia.org/wiki/Refuge_island"
href="https://en.wikipedia.org/wiki/Refuge_island" target="_blank"
moz-do-not-send="true">https://en.wikipedia.org/wiki/Refuge_island</a></div>
<div> </div>
<div> </div>
</div>
</div>
<br>
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