What is the main function of traffic signals?

The main function of traffic signals is to control the flow of traffic at intersections. This is crucial for maintaining safety and order on the roads. Traffic signals help organize the movement of vehicles and pedestrians, ensuring that they can navigate intersections without confusion or conflict. By providing clear indications of when to stop, go, or prepare to stop, traffic signals reduce the chances of accidents and improve overall traffic efficiency.

Traffic signals take into account various factors, such as the volume of traffic, the presence of pedestrians, and the need for vehicles on different roadways to have right of way at different times. This control allows for a smoother and safer transition through intersections.

While providing directions, indicating road conditions, and enforcing speed limits are important aspects of road safety and traffic management, they each serve different purposes that do not directly relate to how traffic signals function at intersections. Traffic signals specifically focus on directing vehicle flow and ensuring compliance with traffic rules to prevent collisions and facilitate orderly movement.