> and no need for traffic lights Inside cites, those traffic lights in intersections were usually also semaphores for pedestrian crosswalks. So when you replac

> and no need for traffic lights Inside cites, those traffic lights in intersections were usually also semaphores for pedestrian crosswalks. So when you replace the intersection with a roundabout, you usually keep the traffic lights for the crosswalks alone. At the speed a car exits a roundabout, a non-regulated crosswalk could be quite dangerous.