What action must a driver take at a school bus stop with its red lights flashing?

When a school bus has its red lights flashing, it indicates that the bus is either picking up or dropping off students. The law requires drivers to stop their vehicles completely when approaching a school bus with flashing red lights, regardless of the direction they are coming from. This is crucial for the safety of children who may be crossing the street to board or disembark from the bus.

Stopping until the red lights turn off ensures that all children can safely get on or off the bus without the risk of being hit by an oncoming vehicle. Once the lights are deactivated, it is safe for drivers to proceed. This protocol is an essential part of maintaining a safe environment around school buses and protecting young pedestrians.