This Article Is A Load of Crap !. Roundabouts Are No safer Than A Controlled Intersection, In Fact they Cause drivers to Be more Aggressive !, By Not wanting to Stop, They Speed Up In Order To Beat The Other Traffic Trying To Get Thru The Intersection.. I Have Seen This Hundreds Of Times !, They Also Confuse older Drivers Who Do Not Know How to use them, I Have even Seen People Going Backwards Thru Them, These Are Not Safer, Nor More Efficient, Given All their Problems.. This Is America For God Sake, Not Europe!!!