How should you enter a roundabout?

Yielding to traffic already in the circle is the correct approach to entering a roundabout. This rule is essential because it ensures the safety and efficiency of the flow of traffic. Vehicles already in the roundabout have the right-of-way, which helps prevent collisions and maintains a smooth transition through the intersection.

This method allows drivers to assess the situation within the roundabout and merge safely when a gap is present. By yielding, drivers can avoid abrupt stops or dangerous maneuvers that might occur if they were to proceed without consideration for existing traffic.

Other options involve actions that could disrupt the flow and safety within the roundabout. For instance, accelerating quickly into the circle could lead to merging conflicts and potential accidents. Signaling left before entering is unnecessary and could confuse other drivers, as it might imply you are intending to make a left turn rather than simply yielding. Finally, stopping completely before entering may not only cause unnecessary delays but also increase the risk of rear-end collisions if the drivers behind fail to anticipate your stop.