What does a solid red traffic light indicate?

A solid red traffic light indicates that drivers must come to a complete stop at the intersection. This signal is critical for maintaining safety on the roads, as it prevents vehicles from entering an intersection while cross traffic is moving, thereby reducing the risk of collisions.

When a traffic light is red, it serves as a clear instruction for all vehicles to halt their forward motion until the light changes to green. This applies to all lanes of traffic governed by the light, including those preparing to make turns unless specific signage allows otherwise. Once stopped, drivers must remain at the stop line or crosswalk until it is safe to proceed when the light turns green. For understanding traffic signals, recognizing the meaning of a solid red light is foundational to safe driving practices.