[Tagging] Signal-controlled roundabouts

[Clay Smalley]

Coming from the US where any form of roundabout is rare, I would consider
any circular intersection a roundabout. Some have signals, some don't have
signals. I know that some people in the US distinguish between the two,
where a 'roundabout' has no signals and a 'traffic circle' does have
signals. Either way, it makes sense to me to tag it as a roundabout because:

1) it is a junction of multiple roads
2) all traffic must enter a circular roadway, and then get off at some point

Out of curiosity, what are others' criteria for a roundabout?


On Fri, Jun 13, 2014 at 8:54 AM, Fernando Trebien <
fernando.trebien at gmail.com> wrote:

> Hello,
>
> I used to believe that, by definition, all roundabouts have free
> transit and right of way along the circle, and that anything that
> didn't display that property isn't a roundabout (just a circle). But
> reading the wiki once again, I'm a little in doubt. The wiki mentions
> that this is a roundabout, but I would previously have thought it
> wasn't because of the traffic lights within it:
> http://www.openstreetmap.org/#map=19/52.59689/-1.14146
>
> So why is it a roundabout? Is it because of the circular shape? Or
> could it be because it's impossible to infer that any of the entering
> ways have right of way, since they are all controlled by traffic
> lights?
>
> --
> Fernando Trebien
> +55 (51) 9962-5409
>
> "Nullius in verba."
>
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