When entering a roundabout or traffic circle, you must yield to?

Yielding to any traffic already in the traffic circle is essential for maintaining safety and smooth traffic flow. Roundabouts are designed to facilitate continuous movement, with entering vehicles expected to wait for a gap in traffic before merging into the circle. By yielding to traffic in the circle, you help prevent collisions and ensure that the roundabout operates efficiently.

While there may be specific rules concerning pedestrians or bus traffic in various jurisdictions, the primary rule across most locations is that vehicles already in the roundabout have the right of way. This ensures that the flow of traffic remains uninterrupted and reduces potential hazards that can arise from entering vehicles trying to merge without yielding correctly. Thus, understanding and adhering to this rule is crucial for safe navigation of roundabouts.