What is the appropriate action when the traffic light turns yellow?

When the traffic light turns yellow, the appropriate action is to prepare to stop if it is safe to do so. A yellow light serves as a warning that the light is about to change to red, indicating that drivers should be ready to stop. This is crucial for traffic safety, as it helps to prevent accidents that could occur from misunderstanding or misjudging the timing of the light changes. If it is not safe to stop—such as when you are too close to the intersection to do so safely—then you should proceed with caution, ensuring that the way is clear. This approach helps maintain a safe flow of traffic and reduces the risk of collisions at intersections.

The other actions suggested, such as speeding up to clear the intersection or ignoring the light, can lead to dangerous situations for both the driver and other road users. Stopping only if other cars have stopped fails to consider the possibility of a sudden brake or a vehicle approaching rapidly, which could lead to a crash. Therefore, being prepared to stop when the light turns yellow is the best practice.