Traffic lights refer to a system used at intersections to control the flow of traffic and maintain safety. The system typically consists of three main components - red, yellow (or amber), and green lights that are arranged vertically on a pole or mast. These lights operate in a sequence to indicate when drivers can proceed, slow down, or stop completely at an intersection.
The meaning behind the colors is as follows:
- Red light: This indicates that traffic must come to a complete stop and wait until the light turns green before proceeding. It also means that any pedestrians should not cross the road while the red light is on.
- Yellow (or Amber) Light: This signifies that drivers need to slow down and be prepared to stop if necessary, as the light is about to turn red. Pedestrians are advised to use caution when crossing the intersection during this time.
- Green Light: Drivers can proceed with caution in the direction indicated by the arrow on the green light. This means that it's safe for pedestrians to cross the road as well, assuming they have already checked for traffic.
Overall, traffic lights serve a crucial role in maintaining order and safety at intersections, helping to prevent accidents and ensure smooth flow of traffic.