In case of a power outage affecting traffic lights, what must drivers do?

In the event of a power outage affecting traffic lights, drivers are required to treat the intersection as a four-way stop. This rule is in place to ensure safety and order when traffic signals are not functioning. At a four-way stop, all vehicles are expected to come to a complete stop and then proceed through the intersection in the order of arrival. This helps prevent accidents and confusion, as all drivers are adhering to the same set of rules despite the absence of traffic lights.

Treating the intersection as a four-way stop allows drivers to make informed decisions about when to enter the intersection, ensuring that those who arrive first have the right-of-way. This system effectively manages traffic flow and keeps the situation predictable for all road users.

Other options provided might not accurately reflect the established traffic laws and protocols for situations like power outages at traffic signals. For instance, proceeding without stopping would disregard the necessary caution needed at such an intersection, potentially leading to dangerous encounters. Similarly, simply calling traffic authorities does not address the immediate situation drivers face when approaching an intersection without functioning lights.