In what order do traffic lights operate from top to bottom?

Traffic lights operate in a specific sequence to regulate the flow of traffic safely and efficiently. The standard order is from top to bottom: red, yellow, and then green.

Red indicates that vehicles must stop, ensuring safety at intersections and pedestrian crossings. Yellow serves as a warning that the light is about to change to red, giving drivers a brief moment to prepare to stop. Green allows traffic to proceed, indicating that it is safe to move forward.

Understanding this sequence is crucial for safe driving, as it helps drivers anticipate changes in traffic flow and respond appropriately. Remembering this order can aid in making quick and correct decisions at intersections, contributing to overall road safety.