What does a flashing red traffic light indicate?

A flashing red traffic light serves as a clear signal for drivers to stop their vehicles completely, much like they would at a stop sign. This means that upon encountering a flashing red light, drivers must come to a full stop and yield to any other vehicles or pedestrians in the intersection before proceeding. The critical point is that it emphasizes the need for caution and awareness, as the driver must ensure it is safe to continue after stopping.

In contrast, the other options suggest actions that do not align with the purpose of a flashing red light. For instance, going ahead with caution implies that the driver can continue moving without a complete stop, and slowing down could lead to misunderstanding the requirement to stop entirely. Yielding to all traffic could also imply that the driver is not required to stop first, which is incorrect as the stop requirement is primary. Understanding this regulation is essential for safe driving and effective navigation through intersections.