We have several roundabouts where a light-controlled crossing is within 25 metres of the roundabout causing traffic to stop back onto the roundabout. It is not always the driver's fault as you could be in a line of moving traffic when the car at the front has to stop. Whoever thought this configuration up in the first place wants shooting. The number of times the car in front moves off, I check right then start to follow, then I suddenly have to slam on the anchors because he has been halted by the light changing. Stupid arrangement.