What action must be taken when a school bus has its red lights flashing?

When a school bus has its red lights flashing, it is indicating that children are boarding or disembarking the bus, which requires extra precautionary measures to ensure their safety. The law mandates that all vehicles must stop, regardless of the direction they are approaching from, when the red lights are activated. This requirement is in place to protect children who may unexpectedly dart into the roadway. Stopping helps create a safe environment for them as they utilize the bus or cross the street.

This action not only aligns with traffic regulations but also fosters a culture of safety around school zones and bus stops. Other actions, like proceeding with caution, passing the bus, or turning around, could jeopardize the safety of children and are thus not appropriate responses when a school bus has its warning lights on.