Which statement about roundabouts is true?

The statement that you must always yield to vehicles already in the roundabout is accurate because it reflects the fundamental traffic rule for navigating roundabouts. In a roundabout, the flow of traffic proceeds in a circular direction, and vehicles already within the roundabout have the right of way. This design helps improve safety and efficiency by minimizing the potential for collisions that can occur when vehicles enter the roundabout without yielding.

Yielding to vehicles in the roundabout ensures that those traveling clockwise can maintain their speed and continuity of traffic flow, which is one of the key benefits of roundabouts. By adhering to this rule, drivers also contribute to a smoother driving experience and reduced congestion.

Other statements regarding roundabouts may misrepresent their functioning. For instance, saying that roundabouts do not require yielding contradicts the established yielding rule and fails to address an essential aspect of safe roundabout navigation. Treating roundabouts like a stop sign also misleads drivers since a stop sign requires vehicles to come to a complete stop, which is not the case in roundabouts where yielding is required instead. Lastly, while speed limits might be lower in certain areas approaching roundabouts, this does not universally apply to all roundabouts. Each one can have its own signage and regulations.