Final answer:
Traffic lights, with colors red, yellow, and green, dictate stopping procedures at intersections. If lights are malfunctioning, drivers must stop completely and follow right-of-way rules. Traffic signals contribute to pedestrian safety and can reduce accidents.
Step-by-step explanation:
Traffic lights are usually red, yellow, and green from the top downward, or left to right when mounted horizontally. State law requires that if the traffic lights or controls are out of service or malfunction when you approach an intersection, you must come to a complete stop as you would for a stop sign. You must then proceed according to the rules of right-of-way.
In certain situations, such as when a pregnant woman is in labor in the vehicle, the rule to stop at red lights may be bypassed if doing so would bring about greater utility, such as getting to the hospital quickly. However, it's important to note that safety and legality must typically be upheld, and traffic laws generally do not permit running red lights.
Traffic signals also play a crucial role in pedestrian safety, as they allow people to cross intersections at designated times without having to dodge traffic. Moreover, the installation of traffic signals can significantly reduce the number of accidents, making intersections safer for all.