Iowa Drivers Permit Practice Test

When you see an oncoming school bus with amber lights flashing on a two-lane highway, it indicates that the bus is preparing to stop to pick up or drop off children. The requirement is to slow down to 20 mph and prepare to stop because this is a safety measure designed to protect children who may be crossing the street or waiting to enter or exit the bus.

The amber lights serve as a warning to drivers that the bus is getting ready to activate its red lights, which means all traffic must come to a complete stop. By slowing down, you are taking the necessary precautions to ensure the safety of children in the vicinity, as they can easily be unpredictable when entering or exiting the bus. Adhering to this requirement contributes to the overall safety of all road users, especially vulnerable ones like children.