I could complain on and on about this; my local authority seem to think a roundabout is best served by putting traffic lights at every possible point on a roundabout; no, tw(a)ts, the point is that when you are on it you can keep going until you get off it….and so on.
The flow of traffic is constantly interrupted by stupid, pointless additions, until you cannot travel more than 100 yards without being brought to a halt.
Then, on the most dangerous (for cyclists) roundabouts, they are designed to process traffic too quickly, thus making the negotiation of said feature a life threatening manoeuvre.
Not to mention the absolute idiocy that occurs when a supermarket gets built….