What does a yellow traffic light indicate?

A yellow traffic light serves as a warning to drivers that the signal is about to change to red. It is an indication that vehicles already in the intersection should prepare to stop, while those approaching the intersection should slow down and be ready to stop unless it is unsafe to do so. This transitional phase is critical for maintaining safety at intersections, as it alerts drivers that the right of way is about to change.

While some might think that a yellow light means to speed up in order to clear the intersection, this interpretation can lead to accidents, as it encourages hasty decisions rather than caution. Moreover, the notion that a light could be malfunctioning is not associated with the typical meaning of a yellow signal, as it only serves to indicate a change in the traffic control phase. Therefore, understanding that a yellow light signifies an impending red is essential for adhering to traffic laws and ensuring road safety.