The yellow flashing signal means what?

The yellow flashing signal indicates that you may proceed only with caution. This signal serves as a warning to drivers that they should be alert to potential hazards ahead, such as intersections, pedestrians, or road conditions that may require extra attentiveness. It does not mandate a complete stop, but rather encourages drivers to slow down and ensure it's safe to continue before proceeding.

In contrast, a steady yellow light generally signifies that the light is about to turn red, urging drivers to prepare to stop, which differs significantly from the flashing yellow light. Similarly, while some signals indicate that a stop is required for various conditions, the flashing yellow specifically advises caution rather than an obligation to stop.