What is the purpose of roundabouts?

Answer: B — To facilitate safer merging and intersection management

The purpose of roundabouts is primarily to facilitate safer merging and intersection management. Roundabouts are designed to direct traffic in a circular flow, which reduces the likelihood of high-speed collisions that often occur at traditional intersections. By having vehicles yield to oncoming traffic within the roundabout rather than stopping completely, they help maintain a continuous flow and reduce delays. This design minimizes the potential for head-on and T-bone accidents and makes navigating intersections safer for all road users, including vehicles, pedestrians, and cyclists. While some people might think that roundabouts could increase traffic speeds or eliminate traffic lights, the primary focus is on improving safety and efficiency rather than simply allowing for faster travel or reducing traffic control measures. Regarding increasing parking space, that is not a feature associated with roundabouts; they specifically serve to manage the flow of traffic rather than provide parking solutions.