What does a red traffic light mean?

A red traffic light signifies that vehicles must stop and wait for the green light before proceeding. This signal is designed to control traffic flow at intersections and ensure the safety of drivers, passengers, and pedestrians. When a driver sees a red light, it indicates that it is not safe to enter the intersection, and compliance is necessary to prevent accidents. Stopping at the red light allows other traffic, including pedestrians who may be crossing, to safely move through the intersection. Understanding this signal is crucial for safe driving and obeying traffic laws.