Illinois Driving Permit Practice Test

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

1. Treat it as a four-way stop

2. Continue moving without stopping

3. Wait for a police officer to direct traffic

4. Proceed as if it were a green light

The correct answer is: Treat it as a four-way stop

When approaching a traffic signal that is not functioning, treating it as a four-way stop is the proper response. This approach is grounded in the principle of ensuring safety for all road users. At an intersection where the traffic signal is out, vehicles must come to a complete stop, and then proceed to yield the right-of-way to cars that arrived first or to the right if vehicles arrive simultaneously. This procedure helps to prevent confusion and accidents, as all drivers are following the same protocol. Moreover, it allows each driver to assess the situation at the intersection and determine when it is safe to proceed, contributing to overall traffic flow and safety. Other responses, such as continuing to move without stopping or treating it as a green light, could lead to serious accidents and chaos at the intersection. Waiting for a police officer may not always be feasible, as they may not be present to direct traffic in every situation. Therefore, understanding and following the four-way stop rule is crucial in these circumstances.