This driver seems to have no lane discipline at roundabouts. At longbarrow roundabout I saw him enter half in lane 1 and half in lane 2. Towards the middle he crossed into lane 3 which is right turn only and cut up other cars. On the other side he indicated left to effectively go straight over. Going the same way I had remained in the left lane throughout. I also saw the driver veer onto the right-hand white line while being overtaken by another vehicle. Several times the driver braked for no apparent reason and also doing an inconsistent speed.
