r00ty

Really? I see them when travelling to London all the time. I used to live in London too. A very common occurrence and if you want to keep traffic moving, allowing people that can proceed to do so, just makes sense to me.

Nope. People are on a roundabout and in the UK you will be going clockwise. So traffic on the roundabout is coming from your right.

I’ve driven in Italy/Germany and it is the opposite. People are going anti clockwise so you have to give way to your left.

The principle is retained on mini roundabouts where you give way to people on the entrance/exit to your immediate right (or of course traffic already on the roundabout) even though those work most similar to 3/4 way stops.

Stop signs don’t need to follow logic of traffic movement direction so you I suppose give priority to the right because being on the right side of the road they are easier to see? I’m not sure where those rules were formulated though.

Depends on the size of the roundabout. For one big enough they could both join simultaneously and maintain a safe distance, that’s fine. If not, if you drive on the left the one on the right has priority and vice versa for the rest of the world.

In fact it’s only a problem if people arrive simultaneously at all junctions, since now there’s no person to the right of everyone.

In this case usually everyone stops (unless one of the cars is a BMW or audi) and then someone will start to move first. After which normal operational rules are restored.

There are specific times when this might be appropriate. For example if I am turning off at the exit after where the car is joining from, I can see they’re indicating to making a move around the inner part of the roundabout which is clear, and if I proceeded I would join a queue for my exit and block them. I’ll usually stop short and gesture they move in.

But otherwise it’s usually safer all round to stick to the rules.

Well couple of things.

You don’t know how long C has been incorrectly yielding. There may well have been enough time for them both to move onward.

Also there’s nothing to say that A isn’t a yet undiscovered C.

I’m from the UK so roundabouts are second nature. I’ve been an accidental C before. Where I had to wait for a lot of cars that had priority over me. When it finally was open for me I was zoned out. Luckily the car behind me was very polite and just used a short beep of the horn to bring me back to reality.