What does a red traffic light indicate?

A red traffic light indicates that vehicles must come to a complete stop and are not permitted to proceed through the intersection. This rule ensures safety by controlling the flow of traffic and preventing accidents at intersections. When the light is red, drivers are required to halt at the designated stop line, wait until the light changes to green, and only then proceed when it is safe. Compliance with this signal is critical for maintaining order on the roads and ensuring the safety of all road users, including pedestrians who may be crossing.