What does a flashing red traffic light mean?

A flashing red traffic light indicates that drivers must come to a complete stop, similar to a stop sign. This signal is used to alert drivers to specific conditions, such as an intersection where other traffic may be present or when it is necessary to yield the right of way to other vehicles or pedestrians. After stopping, drivers may proceed only when they are certain it is safe to do so, ensuring they observe the right of way and any ongoing traffic. This protocol establishes a clear and safe process for navigating intersections and ensures that drivers remain vigilant for other road users, particularly in potentially hazardous situations.

The other possible interpretations, such as proceeding with caution, yielding to pedestrians, or reducing speed and continuing, do not convey the necessity for a complete halt, which is crucial for the safety of all road users in situations indicated by a flashing red light.