When can a strobe light be operated on a school bus?

A strobe light on a school bus is typically used to enhance visibility and ensure the safety of students as they enter and exit the bus. The correct circumstance for operating a strobe light is when visibility drops below 500 feet. This situation is critical as low visibility can jeopardize the safety of children who are accessing the bus, especially in inclement weather conditions. Operating the strobe light in these instances helps alert drivers to the presence of the bus and the children around it.

In other scenarios, such as during the daytime or when atmospheric conditions are clear, the strobe light may not be necessary as visibility is usually sufficient for drivers to see the bus and react appropriately. Additionally, while using a strobe light in emergencies can be beneficial for immediate awareness, it is important to recognize the primary function of the light - to assist in scenarios of reduced visibility, thereby prioritizing safety consistently.