What action is required by a driver when entering a roundabout?

When entering a roundabout, the driver is required to yield to traffic that is already within the roundabout. This means that drivers must slow down and assess the situation, allowing any vehicles circulating in the roundabout the right of way to proceed without obstruction. The design of roundabouts is intended to improve traffic flow, and yielding to existing traffic helps prevent accidents and ensure a smoother transition into the circulating road.

The requirement to yield is essential because it prevents collisions and helps maintain the continuous movement of vehicles. By waiting for an appropriate gap in traffic, drivers can safely merge into the roundabout rather than forcing their way in, which could lead to dangerous situations.

Understanding this traffic rule is crucial for promoting safety and efficiency on the road. Drivers who enter roundabouts without yielding can create hazards for themselves and others, leading to potential accidents.