What is the purpose of a stop line at an intersection?

The purpose of a stop line at an intersection is to indicate where vehicles must stop for traffic signals. Stop lines are typically painted on the road surface, and they serve as visual cues for drivers to ensure they come to a complete stop before proceeding through an intersection when a traffic signal is red, or when a stop sign is present. This helps to promote safety by preventing vehicles from encroaching into the crosswalk or intersection area where pedestrians may be present or where visibility may be obstructed. Proper compliance with the stop line helps in maintaining orderly traffic flow and reducing the risk of accidents.