What does a flashing yellow traffic signal indicate?

A flashing yellow traffic signal indicates that drivers should proceed with caution. It serves as a warning to alert drivers to potential hazards or that they are approaching an area where they need to be careful, such as intersections or pedestrian crossings. The presence of a flashing yellow light means that while the driver is not required to stop, they should be prepared to yield or stop if necessary, especially if there are pedestrians or other vehicles nearby.

The signal emphasizes the importance of being alert and driving defensively in areas that may require extra attention. This differs from other signals like a steady yellow light, which warns that the signal is about to change to red, or a steady green light, which allows for passage without the need for caution. In the context of the flashing yellow light, it provides crucial information to maintain safety on the road while allowing for continued movement.