Do not open a switch that provides access to a signaled track unless authorized by which forms of authorization?

Do not open a switch that provides access to a signaled track unless authorized by which forms of authorization?

• A. Signal indication
• B. Permission of the train dispatcher
• C. Both signal indication and dispatcher permission
• D. Neither

Answer: (C)

Access to a signaled track requires both the signal indication and the train dispatcher’s permission. The signal indication shows that the route is lined and the switch positioned for your movement, providing the immediate safety cue. The dispatcher’s permission adds the broader authority to move within the current traffic plan, preventing conflicts with other trains, yard operations, or work trains. Relying on only one form of authorization can be unsafe: a signal might indicate proceed, but the dispatcher may not have cleared the movement; or the dispatcher may authorize movement without confirming the exact switch alignment for that route. Using both ensures the movement is properly configured and officially authorized.

Access to a signaled track requires both the signal indication and the train dispatcher’s permission. The signal indication shows that the route is lined and the switch positioned for your movement, providing the immediate safety cue. The dispatcher’s permission adds the broader authority to move within the current traffic plan, preventing conflicts with other trains, yard operations, or work trains. Relying on only one form of authorization can be unsafe: a signal might indicate proceed, but the dispatcher may not have cleared the movement; or the dispatcher may authorize movement without confirming the exact switch alignment for that route. Using both ensures the movement is properly configured and officially authorized.