Under Blue Flag protection, who must confirm it is safe before trains may proceed?

• A. Supervisor
• B. Lookout
• C. Train Operator
• D. Any worker

Answer: (B)

Blue Flag protection relies on a Lookout to verify it is safe before trains may proceed. The Lookout watches the track for approaching trains, checks that all workers are clear of the protected area, and ensures any hazards are addressed. Only after the Lookout confirms the track is clear can the Train Operator proceed. While the Supervisor oversees the work, and other workers may be involved in the task, the explicit clearance to move trains comes from the Lookout.