What do 'Turn and stop lights' regulate in traffic laws?

Turn and stop lights play a crucial role in regulating driver behavior at intersections, specifically by signaling a driver's intent to stop or turn. These lights inform other road users about the actions a driver is about to take, helping to prevent collisions and ensure a smoother flow of traffic. When a driver activates a turn signal, it communicates to other drivers and pedestrians that they will be changing lanes or making a turn, thereby enhancing road safety.

This function of indicating a driver's intentions is especially significant in busy traffic environments where clear communication among road users is essential. Proper adherence to these signals helps maintain order and predictability on the road, reducing the likelihood of accidents. By providing a clear visual cue, turn and stop lights are instrumental in coordinating the movements of vehicles and pedestrians alike.