What must a train operator do when key-by a signal?

What must a train operator do when key-by a signal?

• A. Proceed at full speed
• B. Slowly bridge IJ, come to a complete stop, and check the tripper arm
• C. Signal the next train
• D. Continue without stopping

Answer: (B)

When a train operator key-bys a signal, it is crucial to take specific actions to ensure safety and compliance with operational protocols. The correct choice emphasizes the importance of moving cautiously, which is critical in maintaining safety while also adhering to signaling rules. Slowly bridging over the signal allows the operator to approach the signal safely, and coming to a complete stop provides the operator the opportunity to check the tripper arm. This check is essential to verify that the signal has not indicated a stop and that the next segment of the route is clear for movement. By taking these careful steps, the operator ensures that they are not proceeding under incorrect assumptions about the signal's state, which could lead to serious safety incidents. On the other hand, proceeding at full speed or continuing without stopping fails to prioritize safety and operational protocols, potentially leading the train into unsafe conditions. Signaling the next train, while important in a broader context of train operations, does not directly relate to the process of key-bying a signal, where verifying one's own authority and safety is paramount.

When a train operator key-bys a signal, it is crucial to take specific actions to ensure safety and compliance with operational protocols. The correct choice emphasizes the importance of moving cautiously, which is critical in maintaining safety while also adhering to signaling rules.

Slowly bridging over the signal allows the operator to approach the signal safely, and coming to a complete stop provides the operator the opportunity to check the tripper arm. This check is essential to verify that the signal has not indicated a stop and that the next segment of the route is clear for movement. By taking these careful steps, the operator ensures that they are not proceeding under incorrect assumptions about the signal's state, which could lead to serious safety incidents.

On the other hand, proceeding at full speed or continuing without stopping fails to prioritize safety and operational protocols, potentially leading the train into unsafe conditions. Signaling the next train, while important in a broader context of train operations, does not directly relate to the process of key-bying a signal, where verifying one's own authority and safety is paramount.