What is the procedure for a crew member who has been on duty for 10 hours?

The correct procedure for a crew member who has been on duty for 10 hours is to contact the movement bureau and follow their instructions. This step ensures that the crew member receives appropriate guidance based on regulations regarding hours of service and safety protocols.

After being on duty for an extended period, crew members need oversight to ensure compliance with operating rules, particularly concerning fatigue management. By reaching out to the movement bureau, the crew can receive directions on how to safely manage their responsibilities going forward, whether that involves taking a break, requesting additional support, or preparing for relief. This maintains the safety and efficiency of train operations, as well as protecting the well-being of the crew.

The other options do not adequately address the protocol that must be followed after such a period of service. Taking a break without prior authorization could lead to operational disruptions, and continuing to work without addressing the time on duty would be a violation of safety regulations. Requesting a replacement may be necessary, but it should be done through the proper channels, which is why contacting the movement bureau is the recommended course of action.