[Tagging] tagging the diameter of a mini-roundabout

[Philip Barnes]

A mini roundabout often doesn't usually have a diameter. Most are jus normal junctions which have been made mini-roundabouts to set a priority.

So in terms of large vehicles it is the same problem as any other junctions, whether they can turn left or right. 

In the UK, U turns are prohibited at mini-roundabouts, which I would have thought would be the main usecase for a diameter.

Phil (trigpoint)

On 2 February 2023 03:31:39 GMT, Matija Nalis <mnalis-openstreetmaplist at voyager.hr> wrote:
>If the actual issue is that HGV cannot pass some road, why not simply mark it as 
>`hgv=no`? Besides being simple, it has the additional advantage that routers
>will actually already use it and direct HGVs somewhere where they can actually 
>pass.
>
>Or if some lenghts of HGVs can pass, but others not, then maxlength=* 
>or maxlength:hgv=* or some of the other alternatives from 
>https://wiki.openstreetmap.org/wiki/Key:maxlength ?
>
>On Wed, 25 Jan 2023 21:25:32 +0100, Volker Schmidt <voschix at gmail.com> wrote:
>> I see that I was not precise with my question: I am after a way to tag the
>> overall diameter of the round surface composed of the mini-roundabout road
>> surface plus the traversable central part. This is an important measure for
>> trucks. I happen to live near one of these with an outer diameter of 12 m,
>> and that attracts regularly articulated lorries like the cheese attracts
>> flies. This triggered the question.
>>
>> Il giorno mer 25 gen 2023 alle ore 19:10 Peter Neale via Tagging <
>> tagging at openstreetmap.org> ha scritto:
>>
>>> According to the Wiki (with which I happen to agree), a mini-roundabout is
>>> defined as:
>> >
>>> "...a special type of roundabout in which the middle can be traversed
>>> <https://wiki.openstreetmap.org/wiki/Traversable> by vehicles, and is
>>> typically used where there is only limited space available. Road traffic
>>> flows in one direction around a point in the middle and the traffic in the
>>> roundabout has right-of-way. The middle of a mini-roundabout is usually
>>> only a painted circle, but there might also be a low, fully traversable
>>> (mountable) dome or island."
>> >
>>> As it is traversable, does it really have a diameter?  Or, if there is a
>>> painted circle (are traversable domed area) on the ground, perhaps that has
>>> a diameter, but does it matter to any prospective map user?
>> >
>>> Regards,
>>> Peter
>> >
>>> Peter Neale
>>> t: 01908 309666
>>> m: 07968 341930
>> >
>> >
>>> On Wednesday, 25 January 2023 at 17:53:55 GMT, Volker Schmidt <
>>> voschix at gmail.com> wrote:
>> >
>> >
>>> Is there an established way to tag the diameter of a mini-roundabout?
>> >
>>> We have the tag diameter, but I could not find it applied to
>>> mini-roundabouts.
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>> >
>
>
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