What action is required when a traffic light turns yellow?

When a traffic light turns yellow, the appropriate action is to prepare to stop if it is safe to do so. The yellow light serves as a warning that the traffic light is about to change to red, which indicates that vehicles must stop. Drivers should assess the situation to determine if stopping is safe; this involves considering their speed, distance from the intersection, and whether there are any vehicles behind them that may not be able to stop in time.

In many cases, it's safer to stop rather than to accelerate through the intersection, especially if the traffic flow is normal and there are no vehicles directly behind. The purpose of the yellow light is to allow drivers enough time to react appropriately, ensuring safety for all road users. This response aligns with traffic regulation principles, emphasizing cautious driving behavior near intersections.