What must an operator do when facing a flashing yellow light?

When encountering a flashing yellow light, the appropriate action is to proceed with caution. This signal indicates to drivers that they should be alert and reduce speed, as the situation may require careful navigation, especially at intersections where other vehicles or pedestrians may be present. The flashing yellow light serves as a warning signal, suggesting that while there is no stop required, drivers should still stay vigilant and be prepared to react appropriately to any potential hazards or changes in traffic.

In this context, stopping immediately is unnecessary and can lead to confusion or potential accidents, while accelerating through the intersection or turning around would also be inappropriate responses that do not align with standard traffic regulations for a flashing yellow light. Therefore, maintaining a cautious approach is crucial for ensuring safety on the road.