What should you do first after stopping at a bus stop to load or unload students?

After stopping at a bus stop to load or unload students, the first action you should take is to apply the parking brake. This step is crucial for ensuring the bus remains stationary, preventing it from rolling or moving unexpectedly while students are getting on or off. By securing the bus with the parking brake, you create a safe environment for students, allowing them to safely board or exit without the risk of the bus rolling away.

Once the parking brake is secure, you can proceed with other tasks such as opening the door or signaling students to cross safely. However, if the bus is not properly secured with the parking brake first, there could be serious safety risks involved while students are boarding or exiting the vehicle. In summary, applying the parking brake is the foundational action that sets the stage for safely managing the loading and unloading of students.