[Tagging] Roudabout, center island, type of a traffic_island?
voschix at gmail.com
Wed Apr 28 21:05:25 UTC 2021
No, you cannot say the wiki is wrong. You can suggest a new tagging for
The number of mappers that have used highway=island or
traffic_calming=island for this are a very small fraction of roundabout
I guess you would need to make a formal proposal for that extension to the
On Wed, 28 Apr 2021 at 19:23, António Madeira <antoniomadeira at gmx.com>
> 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."
> Which makes sense, since you can have a highway with two ways in the same
> direction, split with a traffic island in the middle.
> Às 14:06 de 28/04/2021, Volker Schmidt escreveu:
> highway=traffic_island has no wiki page and 500 uses in Taginfo.
> traffic_calming=island is not applicable for a roundabout centerpiece. The
> wiki page traffic_calming clearly states: "
> - traffic_calming=island
> [image: Trafficcalming-island.jpg]
> An island is a small area that temporarily separates two different
> directions of traffic. In a roundabout there are no different directions
> of traffic, as it is one-way by definition.
> 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
> If there is a kerb that can be tagged a barrier=kerb.
> On Wed, 28 Apr 2021 at 16:38, Peter Elderson <pelderson at gmail.com> wrote:
>> 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
>> 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).
>> Peter Elderson
>> Op wo 28 apr. 2021 om 16:12 schreef Dave F via Tagging <
>> tagging at openstreetmap.org>:
>>> 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.
>>> 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.
>>> On 27/04/2021 22:32, Allroads wrote:
>>> Is the center_island of a roundabout a type of a
>>> I think it is.
>>> What types of traffic_island can be used?
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