AUTOMATIC SCHOOL BUS STOP ARM

An automatic school bus stop arm is a safety device installed on school buses to ensure the safety of students during pick-up and drop-off. It is designed to extend and retract automatically when the bus comes to a stop, indicating to other motorists that they must stop as well. The stop arm is typically located on the side of the bus and consists of a horizontal arm with a red sign featuring the words "Stop" or "Stop School Bus" and sometimes accompanied by flashing lights. 

When the bus stops and opens its doors, the stop arm extends outward into the adjacent traffic lane, creating a visible barrier. This signals drivers approaching from both directions that they are required by law to stop until the arm is retracted and the bus resumes motion. The automatic functionality of the school bus stop arm ensures consistency and reliability in signaling to other road users, enhancing safety for students getting on or off the bus. It serves as a crucial visual reminder for motorists to exercise caution and follow traffic laws to prevent accidents and ensure the well-being of students.