What is the purpose of a roundabout?

Answer: A — To allow continuous flow of traffic

The purpose of a roundabout is primarily to allow continuous flow of traffic. Roundabouts are designed to manage the flow of vehicles at junctions while minimizing the risk of collisions. By directing vehicles to circulate in one direction around a central island, roundabouts reduce the number of conflict points compared to traditional intersections, where traffic may intersect at right angles. This design encourages vehicles to yield to traffic already in the roundabout, creating a smoother transition through the junction and often reducing delays during peak traffic times. As a result, roundabouts enhance traffic efficiency and safety by promoting a steady flow rather than stopping and starting, which contributes to overall traffic management.