What does a red traffic light signify?

A red traffic light signifies that drivers must come to a complete stop. This is a fundamental traffic law that ensures safety at intersections and helps manage the flow of traffic. When a light is red, it means no vehicles should proceed until the light changes to green, unless otherwise indicated by a sign (such as for turning). This allows for pedestrians to cross safely and gives priority to other vehicles that may have a green signal. Understanding this rule is crucial for preventing accidents and ensuring compliance with traffic regulations.