What is the purpose of a roundabout?

Answer: B — To improve traffic flow and reduce the likelihood of accidents

A roundabout is designed primarily to improve traffic flow and reduce the likelihood of accidents. The circular design facilitates continuous movement of vehicles, allowing them to enter and exit without having to stop at a traffic signal, which can significantly decrease congestion. By minimizing the number of conflict points where vehicles might collide, roundabouts enhance safety for both drivers and pedestrians. The design encourages slower speeds and often includes yield signs, further contributing to a safer environment. Overall, the main objective of a roundabout is to create a more efficient and safer traffic system.