What does a red traffic light mean?

A red traffic light signifies that drivers must come to a complete stop. This rule is a critical aspect of traffic safety, helping to manage the flow of vehicles and pedestrians at intersections. When the light turns red, it indicates that it is not safe to proceed, and drivers must wait until the signal changes to green before continuing.

This stop requirement is especially important in preventing collisions and ensuring that cross traffic and pedestrians can safely navigate the intersection. While other responses might relate to specific scenarios or actions for other traffic signals, the fundamental meaning of a red light is universally understood as a signal to stop, making it essential for maintaining road safety.