Which of the following is acceptable to authorize a movement to reverse direction within an interlocking if a proper interlocking signal is not present?

Which of the following is acceptable to authorize a movement to reverse direction within an interlocking if a proper interlocking signal is not present?

• A. Verbal instruction from the Engineer
• B. Permission from the Dispatcher
• C. Written interlocking order
• D. Form D authorization

Answer: (B)

Within an interlocking, movements are controlled by the interlocking signals. If a proper interlocking signal isn’t available, the authority to proceed must come from the Dispatcher. The Dispatcher has the formal authority to authorize movements inside interlocking limits when the normal signaling is not present, ensuring that opposing movements are prevented and safe track alignment is maintained. An Engineer cannot grant that authority, since interlocking safety relies on dispatcher-approved authorization. While a written interlocking order or Form D can be used in various special cases, the direct and appropriate mechanism for this scenario is the Dispatcher’s permission.

Within an interlocking, movements are controlled by the interlocking signals. If a proper interlocking signal isn’t available, the authority to proceed must come from the Dispatcher. The Dispatcher has the formal authority to authorize movements inside interlocking limits when the normal signaling is not present, ensuring that opposing movements are prevented and safe track alignment is maintained. An Engineer cannot grant that authority, since interlocking safety relies on dispatcher-approved authorization. While a written interlocking order or Form D can be used in various special cases, the direct and appropriate mechanism for this scenario is the Dispatcher’s permission.