What does a flashing red traffic light indicate?

A flashing red traffic light indicates that drivers must come to a complete stop at the intersection, similar to a stop sign. After stopping, drivers are required to yield to any oncoming traffic and pedestrians before proceeding when it is safe to do so. This signal is designed to ensure that the intersection is clear of hazards before continuing, thus maximizing safety for all road users.

The choice to proceed with caution does not fully capture the necessity to stop first, while speeding up to clear the intersection or indicating construction ahead would not be appropriate responses to a flashing red light, as they could increase the risk of accidents. Each of these incorrect options could lead to misunderstanding the intended precautionary measures associated with a flashing red light.