What does a school bus's flashing red lights indicate to other drivers?

A school bus's flashing red lights indicate that the vehicle is actively loading or unloading students, and therefore, other drivers must stop. This is a crucial safety measure designed to protect children as they enter or exit the bus. When the red lights are flashing, it signals that children may be crossing the street or are in close proximity to the bus, making it essential for all vehicles to come to a complete stop regardless of the direction they are approaching from. This law is in place to ensure the safety of young passengers, highlighting the importance of vigilance and adherence to traffic laws in school zones. The requirement to stop applies to all vehicles, with certain exceptions depending on the jurisdiction, such as when on a divided highway.