What does a yellow traffic light indicate?

A yellow traffic light serves as a warning signal that the light is about to change to red. It indicates that drivers should prepare to stop before the intersection if it is safe to do so. This function is crucial for maintaining traffic flow and enhancing safety as it alerts motorists to the impending change.

While some might mistakenly think it allows for acceleration to clear the intersection, doing so can lead to accidents if the light changes unexpectedly and does not prioritize safety. Continuing with caution can also be misunderstood; while caution is always advised, it does not imply that one should proceed without considering the stop signal that follows. U-turns are not permitted when facing a yellow light, as this does not align with the signal’s intent of preparing for an impending stop. Thus, the yellow light essentially communicates the need for caution and readiness to halt rather than presenting an invitation to continue through the intersection without regard to changing conditions.