What does a flashing yellow light indicate to drivers?

A flashing yellow light is a warning signal that indicates to drivers that they should proceed with caution. This means that while drivers are not required to stop, they should be alert and prepared to yield to any potential hazards or changing road conditions ahead. The flashing yellow light is often used in situations where there may be an intersection ahead, pedestrian crossings, or temporary road conditions that require drivers to be more attentive.

In contrast, a steady yellow light typically means that a traffic light is about to change to red, and drivers should prepare to stop if it is safe to do so. The other options suggest actions that do not align with the warning that a flashing yellow light conveys; such as stopping immediately or making unsafe maneuvers like U-turns, which are not appropriate responses to this signal. Thus, the indication to proceed with caution is both a safety measure and an invitation to remain aware of the driving environment.