Good question. I think this is because originally it was, as many others in the UK, a true roundabout with priority in the ring. The traffic signals were added later to avoid blocking up the (ex-)roundabouts. I have seen many roundabouts in the UK go through these phases: New "clean" roundabout; access control by traffic signals (sometimes part-time); traffic signals in the actual ring (as in the example. Even though they are still called xxx-roundabout, I agree with you that they do not correspond to the criteria for roundabouts, and I believe there are no roundabout traffic signs either I would invite comments form the UK mappers on this, as they seem to have added the corresponding paragraph into the wiki article on roundabouts. Here in Italy I would not tag a similar road layout as junction=roundabout
On 13 June 2014 17:54, Fernando Trebien <fernando.treb...@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." > > _______________________________________________ > Tagging mailing list > Tagging@openstreetmap.org > https://lists.openstreetmap.org/listinfo/tagging >
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