What is indicated by a 'mini roundabout' traffic sign?

The indication that drivers should yield to traffic already in the roundabout is correct and reflects standard traffic rules associated with mini roundabouts. This traffic sign informs drivers that they must give priority to vehicles that are already circulating within the roundabout. This helps maintain a smooth flow of traffic and reduces the risk of collisions by ensuring that those inside the roundabout have the right of way.

Understanding this principle is critical for maintaining safe driving practices, especially in situations where multiple vehicles may approach the roundabout simultaneously. Yielding in these instances allows for efficient navigation and contributes to overall traffic safety.

The other options do not accurately reflect the rules governing mini roundabouts. For instance, the first choice about giving way at all times doesn't specifically highlight the priority of vehicles already in the roundabout. The second choice incorrectly suggests that drivers must always stop before entering, which is not required unless there is a specific stop sign. The third choice about navigating clockwise is misleading because while most roundabouts and mini roundabouts operate in a clockwise manner, it doesn't address the key rule about yielding to existing traffic.

Thus, the emphasis on yielding to traffic already in the roundabout is essential for safe and effective navigation through these intersections.