What should you do when approaching a roundabout?

When approaching a roundabout, the correct action is to yield to traffic already in the roundabout. This practice is important because roundabouts are designed to improve traffic flow and safety by allowing vehicles within the roundabout to continue moving without stopping. Yielding to the vehicles already circulating ensures that you join the roundabout smoothly and safely, reducing the likelihood of collisions.

The focus on responding to existing traffic within the roundabout helps maintain the continuous movement of vehicles, which is a key feature of roundabouts. Properly yielding allows for a safer merging experience as you wait for a suitable gap to enter.

In contrast, entering at high speed would be dangerous and irresponsible, potentially leading to accidents. Stopping and waiting for a green light is unnecessary in a roundabout, as they do not use traffic signals; instead, the flow is managed through yielding. Increasing speed to merge contradicts safe driving practices, as this can lead to reckless entry and increase the risk of collisions with vehicles already in the roundabout.