I can only grin when I think of my many trips to work down Rt 1 in Mass, rotary after rotary. Don't look left or right, don't make eye contact, possesion is 9/10 ths of the law, jump in let them stop its not my problem, if they hit you they are at fault - must maintian control of vehicle at all times. Da Rules of the roundabout road come to Meridith at a Mickie Dees near you
To repeat, this is a cheep fix, not a solution to the traffic problem.