What does a roundabout allow drivers to do?

A roundabout is designed to improve traffic flow and safety at intersections. The primary function of a roundabout is to allow vehicles to navigate through intersections without the need to come to a complete stop, thereby minimizing delays and maintaining continuous movement. This feature reduces the likelihood of high-speed collisions that are common at traditional intersections, where vehicles may face stop signs or traffic lights.

In a roundabout, traffic circulates in one direction around a central island, allowing vehicles already inside the roundabout to proceed while new vehicles yield at the entry points. This design helps to keep traffic flowing smoothly and efficiently, which is particularly beneficial during peak travel times.

The other options do not accurately reflect the primary benefits of a roundabout. While roundabouts can facilitate pedestrian crossing by establishing designated crosswalks, their primary advantage is maintaining traffic movement rather than stopping for pedestrians or managing traffic signs.