When approaching a roundabout, what is the correct action?

When approaching a roundabout, the correct action is to yield to traffic already in the roundabout. This means that drivers should slow down and allow vehicles that are already circulating to pass before entering the roundabout themselves. This behavior ensures a smooth flow of traffic and helps prevent accidents, as vehicles within the roundabout have the right of way.

Yielding also allows for better decision-making and increases safety, as it gives drivers the time to assess gaps in traffic before entering. Properly yielding helps maintain the roundabout's design purpose, which is to improve traffic efficiency and safety by reducing collision points compared to traditional intersections.

Other actions, such as entering without slowing down, could lead to dangerous situations as it disregards the presence and right of way of other vehicles, while signaling only when exiting does not communicate intentions to others in the roundabout. Driving the wrong way around the roundabout is not only unsafe but also illegal, as it can cause confusion and increase the likelihood of collisions.