Which action is required regarding blue signals before they may be removed?

Which action is required regarding blue signals before they may be removed?

• A. They may only be removed by an employee of the same craft or group that displayed them.
• B. Any employee may remove blue signals after a hand signal.
• C. They may be removed by the supervisor on duty only.
• D. They may be removed after a ten-minute delay.

Answer: (A)

Blue signals protect workers on or near the tracks, so their removal must be handled by the person who placed them or by someone from the same craft who understands the protection and the work status. This ensures the area is truly clear and that the crew agrees it’s safe to resume movement, maintaining accountability and preventing premature removal by someone who might not know the full context. Allowing removal by any employee, or by a supervisor alone, could lead to unsafe conditions if the protected work isn’t fully complete or if people are still in the area. A fixed delay doesn’t guarantee safety or proper verification.

Blue signals protect workers on or near the tracks, so their removal must be handled by the person who placed them or by someone from the same craft who understands the protection and the work status. This ensures the area is truly clear and that the crew agrees it’s safe to resume movement, maintaining accountability and preventing premature removal by someone who might not know the full context. Allowing removal by any employee, or by a supervisor alone, could lead to unsafe conditions if the protected work isn’t fully complete or if people are still in the area. A fixed delay doesn’t guarantee safety or proper verification.