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

When approaching a traffic signal that is not functioning, treating it as a four-way stop is the appropriate action to take. This is because a malfunctioning traffic signal can create confusion and potential hazards at intersections, similar to those found at a stop sign.

By treating the intersection as a four-way stop, all vehicles must come to a complete stop before proceeding, yielding to any vehicles that arrive first or to those on the right if vehicles arrive simultaneously. This method helps to ensure that traffic flows safely and that priority is given to vehicles based on established right-of-way rules.

Choosing to proceed with caution or continuing to drive as if the signal is green may create unsafe situations since other drivers may interpret the non-functioning signal differently. Turning around might not be practical or necessary if the intersection can be navigated safely. Thus, applying the rules of a four-way stop minimizes the risk of accidents and allows for orderly traffic management.