What does a flashing yellow traffic signal mean?

A flashing yellow traffic signal indicates that drivers should proceed with caution. This signal alerts drivers to be aware of their surroundings and to prepare for potential hazards ahead. It's a warning that they may need to slow down and be prepared to stop, especially if there are pedestrians crossing or if traffic conditions change. The flashing yellow light serves as a reminder that while it is safe to continue moving, it is important to do so with increased vigilance and readiness to react to any unforeseen circumstances.

In contrast, a steady yellow light, for instance, indicates that the signal is about to change to red, necessitating a stop if it is safe. The other possible answers reflect situations that do not accurately describe the meaning of a flashing yellow light, as it does not require a complete stop, does not encourage speeding, and does not imply yielding to all vehicles as a primary action.