[alistairSH]

As somebody who has visited and driven around the UK quite a few times, I would assume that was a roundabout and treat it as such. Other than the lack of blue roundabout traffic sign, it looks just like one of many other roundabouts.

Or, put another way, why is it shaped like a circle, and not just a normal 4-way uncontrolled intersection?

[drcongo]

Well, until today and reading the parent's blog posts I hadn't actually realised it wasn't a roundabout, and in use, it seems everyone kinda behaves like it is anyway. It's certainly an improvement on what was there before though.

[nmeofthestate]

It used to be a roundabout and now everyone treats it as a roundabout, and it's an improvement - I'm somewhat baffled.

[drcongo]

No, it used to be traffic lights with long queues at each entrance. I mentioned that in my original post.

[nmeofthestate]

Okay. In the streetview imagery it's a traditional roundabout with no lights, but from the map view it's... weird looking. Maybe they have changed to a normal roundabout, or the tried a normal roundabout for a bit instead of lights, and then went with the new round thing...