What action should be taken when approaching a roundabout?

When approaching a roundabout, yielding to traffic already in the roundabout is crucial for maintaining safety and ensuring a smooth flow of vehicles. Roundabouts are designed to enhance safety by reducing the likelihood of high-speed collisions and managing traffic effectively. By yielding to the traffic that is already circulating, you allow those vehicles to continue moving, thereby minimizing delays and preventing potential accidents.

This action is aligned with the basic rule of roundabouts: vehicles inside the roundabout have the right of way. It is essential to look for any signs or markings that indicate the presence of a roundabout and to prepare to slow down as you approach. Recognizing the system of yielding ensures that drivers can enter the roundabout safely and efficiently.

In contrast, actions such as speeding through without stopping or always stopping before entering do not align with the intended operation of roundabouts. They could cause confusion or block traffic flow, leading to unnecessary hazards. Activating headlights can also be beneficial in low visibility but is not the primary action to take when approaching a roundabout. Understanding the right of way in a roundabout is key to safe driving in these situations.