What should you do if you encounter a traffic signal that is not functioning?

When encountering a traffic signal that is not functioning, you should treat it as if it were a stop sign. This means coming to a complete stop and ensuring that the intersection is clear before proceeding. This approach prioritizes safety, as it enables you to check for any vehicles or pedestrians that may be in or approaching the intersection.

Treating a non-functioning traffic signal as a stop sign aligns with standard traffic regulations that apply during such situations, ensuring that all drivers take necessary precautions to prevent accidents. It also maintains an orderly flow of traffic, allowing drivers to make safe decisions rather than creating confusion at the intersection.

The other options can lead to dangerous situations. Ignoring the signal could result in a collision, while accelerating to pass through quickly raises the risk of accidents as it disregards safety. Calling the police might be necessary if the traffic situation becomes hazardous, but immediate action should focus on safely navigating the intersection first.