Roundabout

A roundabout, rotary, or gyratory circus is a type of road junction (or traffic calming device) at which traffic streams around a central island, after first yielding to the circulating traffic. In the United States it is technically called a "modern roundabout", to emphasize the distinction from the older, larger type of traffic circle. Roundabouts are statistically safer than both traffic circles and traditional intersections, though they do not cope as well with the traffic on motorways or similar fast roads.