When should a school bus driver activate the red crossover lights?

A school bus driver should activate the red crossover lights after coming to a complete stop to load or unload passengers. This action is crucial because it signals to other drivers that they must stop and that students will be entering or exiting the bus. The red lights serve as a warning to protect the safety of the children as they cross the street or approach the bus.

In this context, the red crossover lights are used specifically to enhance visibility and awareness for both drivers and pedestrians. By activating the lights only after the bus has stopped and when loading or unloading occurs, the driver ensures that all safety protocols are followed, minimizing potential accidents in the vicinity of the bus.