What action must be taken if the rolling equipment to be protected includes locomotives?

Displaying a blue signal to each locomotive and ensuring it is visible to the engineer is essential for the safety of operations involving rolling equipment that includes locomotives. The blue signal serves as a visual indicator to warn crew members that work is being done on or around the equipment and that it must not be moved. This communication is critical to prevent accidental movement, which could lead to serious incidents or injuries.

By requiring that each locomotive display a blue signal, it ensures that the warning is clear and unambiguous to anyone operating the equipment. This way, all crew members are fully aware that the locomotives, in addition to other rolling stock, are part of the protected area and should not be moved until it is safe to do so.

This protocol helps maintain safety standards and reinforces the importance of proper signaling and communication within rail operations, particularly when multiple locomotives may be involved.