The purpose of traffic lights is to control the flow of traffic and ensure the safety of drivers, pedestrians, and cyclists on the road. They indicate when it is safe to proceed, stop, or yield at intersections.
Traffic lights work using a system of sensors, timers, and signals. When a vehicle approaches an intersection, sensors detect its presence and signal the traffic light to change. Timers are used to control the duration of each signal, allowing for a smooth flow of traffic.
The three colors on a traffic light are red, yellow, and green. Red means stop, yellow means caution, and green means go. These colors are standardized and universally recognized for traffic control.
If a traffic light malfunctions, it can cause confusion and potentially dangerous situations. In this case, drivers are expected to treat the intersection as a four-way stop and proceed with caution.
Yes, traffic lights are a crucial part of traffic control and have been proven to reduce the number of accidents at intersections. They provide clear signals and guidelines for drivers, reducing the chances of collisions and improving overall road safety.