Brief introduction of roundabout

Roundabout refers to the circular feature built at road intersections, and traffic facilities are mostly set at the intersection of multiple traffic intersections. Because it is mostly a circular island, it is called around the island. Rounding the island can make vehicles travel in the same direction, and turn the conflict point into a passing point, which can effectively reduce the occurrence of traffic accidents. It has the function of slowing down and turning the vehicle, so as to reduce the driving conflict of the vehicle.