When approaching a red stop signal, what is your required action?

• A. Proceed through the red signal after a brief stop if advised by the dispatcher.
• B. Stop and proceed only when the signal returns to a permissive aspect or as authorized by the dispatcher.
• C. Continue at normal speed if you cannot see any activity.
• D. Turn the locomotive around and exit the line.

Answer: (B)

Red stop signals require you to come to a complete stop and not pass the signal. You may proceed only when the signal returns to a permissive aspect that authorizes movement or when the dispatcher explicitly authorizes you to proceed. This ensures the track ahead is clear and your movement won’t conflict with others. So, you don’t go through the red, you don’t speed past it if you can’t see activity, and you don’t turn around to exit the line; you wait for permission or a permissive signal.