[Tagging] Turning circle with island or turning loop (was Re: (Mini)Roundabout: examples

Martin Vonwald imagic.osm at gmail.com
Tue May 15 14:23:55 BST 2012


I added highway=turning_loop to the last example and noted, that it is
under discussion right now.

It would really help a lot if the major renderers would support this,
as well as junction=roundabout on a single node. Otherwise I'm afraid
the acceptance would be rather low.

Thanks!
Martin

2012/5/15 Phil! Gold <phil_g at pobox.com>:
> * Martin Vonwald <imagic.osm at gmail.com> [2012-05-15 14:11 +0200]:
>> Now the only issue remaining is: how? Right now I see two solutions:
>> 1) highway=turning_circle and turning_circle=island or traffic_calming=island
>> 2) new tag like e.g. highway=turning_loop
> [snip]
>> I would really like to get more opinions from the people using
>> turning_circle right now for places with islands.
>
> I usually map loops explicitly, but I have occasionally tagged such places
> as highway=turning_circle when I wanted to indicate that there was
> something there, but didn't want to spend the time drawing a bunch of
> loops.  In such cases, I've used turning_circle, because it seemed the
> least-incorrect tag available.
>
> I think I'd prefer highway=turning_loop.  It seems simpler to use one tag
> rather than two, since in this case, you could argue that a
> turning-area-with-an-island is not really a subtype of a
> turning-area-without-an-island.  (Though you could address that by saying
> that the two cases are highway=turning_circle, turning_circle=island and
> highway=turning_circle, turning_circle=open, with the assumption that a
> missing turning_circle tag implies turning_circle=open.)  I don't think it
> would be too hard to add a rendering for highway=turning_loop, so if it
> gets general approval and no one else beats me to it, I'll try to put
> together a patch against the main rendering for it.
>
> --
> ...computer contrarian of the first order... / http://aperiodic.net/phil/
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