<div dir="ltr">Hm... I would say, highway=island is too vague, even misleading, and traffic_calming=island is simply not what it is. <div>roundabout_central_island, that's what it is. A specific part of a roundabout construction, with no special function for traffic that isn't already in the junction ways, markings, rules and signs. Unless you count the truck apron, but even that would have to be tagged additionally, comparable with kerb. kerb=truck_apron?</div><div><br></div><div>If highways are going to be tagged as areas underlying the linear representation of roads, the roundabout central island certainly deserves its place. Right now, the highway areas typically are NOT tagged, so the lines stand out against the nothingness between the fields and forest compartments. . </div><div><br></div><div><div><div><div dir="ltr" class="gmail_signature" data-smartmail="gmail_signature">Peter Elderson</div></div><br></div></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">Op wo 28 apr. 2021 om 23:08 schreef Volker Schmidt <<a href="mailto:voschix@gmail.com">voschix@gmail.com</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 dir="ltr"><div>No, you cannot say the wiki is wrong. You can suggest a new tagging for roundabout centrepieces. <br></div><div>The number of mappers that have used highway=island or traffic_calming=island for this are a very small fraction of roundabout mappers.</div><div>I guess you would need to make a formal proposal for that extension to the tag use.</div><div><br></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Wed, 28 Apr 2021 at 19:23, António Madeira <<a href="mailto:antoniomadeira@gmx.com" target="_blank">antoniomadeira@gmx.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 bgcolor="#ffffff">
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>Às 14:06 de 28/04/2021, Volker Schmidt
escreveu:<br>
</div>
<blockquote type="cite">
<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" style="background:none 0% 0% repeat scroll rgb(238,238,255);font-size:1em;line-height:1.6"><a>traffic_calming</a>=<a href="https://wiki.openstreetmap.org/wiki/Tag:traffic_calming%3Disland" title="Tag:traffic calming=island" target="_blank">island</a></tt></li>
</ul>
<dl>
<dd>
<div><a href="https://wiki.openstreetmap.org/wiki/File:Trafficcalming-island.jpg" target="_blank"><img alt="Trafficcalming-island.jpg" 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" target="_blank">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">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">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">https://en.wikipedia.org/wiki/Refuge_island</a></div>
<div> </div>
<div> </div>
</div>
</div>
<br>
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