What should you do if you are approaching a roundabout?

When approaching a roundabout, the correct procedure is to yield to traffic that is already in the roundabout. This is essential for ensuring a smooth flow of traffic and preventing potential collisions. Vehicles already in the roundabout have the right of way, and you should only enter once it is safe to do so.

Yielding allows you to assess the situation and wait for an adequate gap in traffic before merging. This practice helps maintain order and efficiency within the roundabout, facilitating a more streamlined navigation for all drivers involved. Being cautious and yielding rather than rushing can significantly reduce the risk of accidents.

The other options do not align with safe driving practices: speeding up can lead to dangerous situations, taking a U-turn is not appropriate in a roundabout, and stopping for a green signal is not applicable since roundabouts do not operate with signals. Understanding the right etiquette for roundabouts, including yielding, is key to safe and effective driving.