In which situation must a flagman thoroughly explain the reason for stopping a train?

A flagman must thoroughly explain the reason for stopping a train before the train proceeds again because it ensures the safety and awareness of the crew. Clear communication about the stop's circumstances is crucial to prevent any potential misunderstandings that could arise when the train is ready to move again. This process helps reorient the crew to the specific conditions or hazards that led to the halt, ensuring they are fully informed and prepared for the next phase of movement.

This practice is essential in maintaining the integrity of operations, as it enhances situational awareness and mitigates risks associated with unexpected train movements. By doing so, the flagman plays a key role in maintaining safety standards and operational efficiency on the track.