What does the yellow light mean when approaching an intersection?

The yellow light serves as a warning signal that the traffic light is about to change to red. This means that drivers should prepare to stop safely if they can do so without causing an accident. It indicates that they should not enter the intersection unless it is unsafe to stop.

Understanding this is crucial because it helps maintain safety at intersections. If drivers do not prepare to stop when the light turns yellow, they risk entering the intersection on red, which could lead to potentially dangerous situations or collisions.

The other options do not accurately reflect the meaning of a yellow traffic signal. Proceeding with caution may lead to different interpretations and actions that do not prioritize stopping when necessary. Speeding up to cross the intersection contradicts the purpose of the yellow light and increases the risk of a crash. Yielding to all traffic is more indicative of a stop sign or a red light, rather than a yellow signal, which specifically prompts preparation to stop.