What does a red traffic light signal mean?

A red traffic light signal universally means that vehicles must stop and wait for the green light to proceed. This rule is fundamental to traffic control and ensures the safety of all road users, including pedestrians and other vehicles. The requirement to stop at a red light is critical for maintaining an orderly flow of traffic and preventing accidents at intersections.

By adhering to this traffic signal, drivers help prevent collisions and contribute to safer roadways. The signal indicates that any movement beyond the stop line is prohibited until the light turns green, which legally reinforces the necessity to come to a full stop at the red light.