Final answer:
The correct option is 1) Four-way stop, where drivers must stop and proceed safely. Traffic signals are crucial for regulating traffic, ensuring pedestrian safety, and reducing accidents.
Step-by-step explanation:
The correct answer is option 1) Four-way stop. When the traffic signals at an intersection are not operating, drivers are advised to treat the intersection as if it is a four-way stop. This rule is designed to prevent accidents and ensure the safety of all road users, including pedestrians. When approaching an intersection with non-operational traffic signals, each driver must come to a complete stop and proceed through the intersection only when it is safe to do so, typically in the order in which the vehicles arrived at the intersection, or as yield signs dictate if they are present.
About traffic issues, there are many reasons why the installation of a traffic signal might be necessary. Increased vehicle speed, pedestrian safety concerns, and a higher rate of accidents are significant factors. A traffic signal regulates traffic flow, enforces speed limits, and provides safe crossing for pedestrians. For instance, if vehicles frequently speed through an intersection and pedestrian safety is compromised, a properly functioning traffic signal can mitigate these issues and potentially reduce the incidence of accidents.