A train moving at 60 mph passes an advance approach signal. What action is required?

• A. Slow down to 40 mph
• B. Maintain speed at 60 mph
• C. Stop and call the dispatcher
• D. Reduce to 50 mph

Answer: (A)

An advance approach signal tells you that a restrictive aspect is coming in the next block, so you must reduce to the prescribed speed to safely approach that signal. When a train is moving at 60 mph and you encounter this signal, you’re required to slow down to the indicated speed for the upcoming block, which is 40 mph. This ensures you have enough distance to stop if the next signal requires it and to stay within the allowed speed as you approach the restrictive aspect. Maintaining 60 mph would violate the speed restriction and could lead to unsafe braking or running a signal. Stopping and calling the dispatcher isn’t prompted by an advance approach alone, and reducing to 50 mph isn’t the standard requirement unless specifically stated.