Which action is required when approaching a roundabout?

When approaching a roundabout, it is crucial to yield to the traffic that is already circulating within the roundabout. This rule is in place to ensure a smooth flow of traffic and minimize the risk of collisions. Vehicles inside the roundabout have the right of way, much like the rules for merging on highways. By yielding to the circulating traffic, drivers can safely enter the roundabout without disrupting the established flow, allowing for an efficient transition through the intersection.

Yielding also minimizes confusion and helps prevent accidents, as vehicles entering the roundabout can assess the movement of those already inside and only merge when it is safe to do so. This practice enhances overall road safety and promotes better traffic management at intersections that can often become congested without clear yielding guidelines.