What should a driver do if traffic lights are malfunctioning?

When traffic lights are malfunctioning, the correct approach is to treat the situation as a stop sign. This is based on the principle of ensuring safety at intersections where signals are not functioning properly. A driver should come to a complete stop and then proceed only when it is safe to do so, yielding to other vehicles and pedestrians that may have the right of way, similar to the rules that apply at a stop sign.

This procedure helps prevent accidents that can occur at intersections when drivers are uncertain about the right of way due to non-operational signals. By stopping, drivers ensure they have time to assess the situation and proceed safely, which aligns with the goal of traffic control devices: to manage the flow of traffic and minimize hazards.

Other options suggest either a reduced or no stop, which could lead to confusion and increase the risk of collisions. It is crucial for drivers to adhere strictly to the protocol of stopping when faced with malfunctioning traffic signals to maintain safety for all road users.