What does signal 11-85 indicate a train should do?

Signal 11-85 indicates that a train should stop, then proceed within vision. This signal typically signifies that there is a condition ahead that requires the crew to pay close attention as they move forward. The emphasis on "within vision" means that the train should proceed at a speed that allows the crew to see any potential hazards or signals ahead clearly.

This approach ensures that the train can react appropriately to any unexpected situations or obstacles that may be present on the tracks. Knowledge of this signal is critical for ensuring safety during operations, as it encourages vigilance and caution among the crew. In essence, it prioritizes the safety of the train and its passengers by mandating a cautious approach to potentially hazardous situations.