What is the primary purpose of flashers on a school bus?

The primary purpose of flashers on a school bus is to alert other drivers of a stopped bus. When a school bus is stopped to load or unload passengers, particularly children, it activates its flashing lights to increase visibility and ensure that surrounding vehicles are aware of the situation. This is crucial because children may suddenly enter or exit the bus, and by signaling with flashers, the bus is communicating that it is not safe for other vehicles to pass. The use of flashing lights is a legally required safety measure intended to prevent accidents and protect the well-being of students during these critical moments.