What immediate action should be taken if a bus breaks down?

When a bus breaks down, the most immediate and crucial action is to turn on the hazard lights and alert authorities. This step helps signal to other drivers that the bus is experiencing issues, ensuring safety for both the bus passengers and others on the road. Hazard lights make the bus more visible, which is essential in preventing accidents or further incidents.

Additionally, alerting authorities, such as a garage service, transportation management, or even law enforcement, is vital for securing an appropriate response to the breakdown. This could involve arranging for someone to assist with repairs or help with passenger safety.

Turning off the bus and leaving the vehicle does not provide any safety to the passengers or alert others of the issue. Continuing to drive despite a breakdown is dangerous and can lead to more significant risks on the road. Waiting for passengers to exit without first ensuring safety could exacerbate the situation if the bus is not properly secured or positioned. Thus, activating hazard lights and notifying authorities is the correct, proactive approach to handling a bus breakdown.