That’s interesting and explains a lot! Thanks, for probably the most informative and constructive answer I got so far. Hopefully, it will guide me in deciphering the API one day. It’s a small step for my pilgrimage but eventually I will accomplish what I set out for: manage to get the roundabouts. Really excited, thanks again.
I really do hope that we do not accept the right of way argument as a reason something is not a roundabout. In the Netherlands a roundabout default has no right of way (when on the roundabout) and traditionally never had right of way. Most are now signalled so that you do have right of way (when on the roundabout). But that is signalled by different signs than the sign saying something is a roundabout! Right of way does not have anything to do with roundabout or not.
I don’t know how it is in other countries but in the Netherlands and I think most, if not all, European countries, a roundabout is signalled with this sign or something similar.
The Vienna convention specifies a general “right-before-left” rule. So traffic on the roundabout has right of way. You can assume that most European countries have accepted this.
As for Gemany, StVO paragraph 8 says
Nowhere it is said that only using sign 215 implies right-of-way. You have to use sign 205 to make sure right-of-way is given to the roundabout. So there is no implied right-of-way by only the use of sign 215.
IMHO it is wrong to state that (also in the wiki) and the wiki wording is doubly wrong because
That is usually the case with roundabouts. Also roundabouts that do not have right-of-way do not need to have any signals because right-of-way is then controlled by the general rule “right before left”. This is a roundabout. The traffic signals are only there for the bicycle crossings, they do not prevent going round. The roundabout does not have right-of-way.
What is and is not a roundabout should controlled by the sign associated with it, not how the right-of-way is.
You did not get my point. I don’t care what exactly the sign says (junction=roundabout or junction=circular).
What I try to point out is that we can assume that a way which is tagged with junction=roundabout has the right of way because that’s what the tag means besides the fact that the way is circular. The wiki says this at least since 2012.
And IMHO the wiki is wrong. There is a clear signal in most if not all highway codes from countries around the world that says “this is a roundabout”. To start making our own definition (a roundabout is only a roundabout when it has right-of-way) is confusing.
That’s like saying “oh no, this is not a motorway because xyz, even though the sign says motorway”.