What is the primary purpose of traffic signals?

The primary purpose of traffic signals is to manage traffic flow and ensure safety. Traffic signals play a critical role in controlling the movement of vehicles and pedestrians at intersections, which helps to prevent accidents and maintain order on the road. By regulating when vehicles can go, when they must stop, and when pedestrians can cross, traffic signals enhance the overall safety of roadways and ensure that traffic flows smoothly. This structured approach minimizes confusion at intersections, reduces the likelihood of collisions, and allows for a more efficient transportation system.

While facilitating speedy movement of vehicles is a goal in traffic management, safety and orderly traffic flow take precedence. Traffic signals are not designed for decorative purposes nor are they used to provide weather information. Their main function lies in creating a predictable environment for all road users, promoting safety and efficiency.