Final answer:
A flashing yellow light at an intersection means caution. Drivers should slow down and proceed with caution, and be prepared to stop if necessary.
Step-by-step explanation:
A flashing yellow light at an intersection means caution. It indicates that drivers should slow down and proceed with caution, and be prepared to stop if necessary. Unlike a solid yellow light, which is a warning that the light is about to turn red, a flashing yellow light allows drivers to proceed through the intersection.