When the cab signal aspect changes to Restricting between fixed signals, the Engineer must take action at once to reduce to?

When the cab signal aspect changes to Restricting between fixed signals, the Engineer must take action at once to reduce to?

• A. Stop
• B. Normal speed
• C. Caution speed
• D. Restricted Speed

Answer: (D)

When the cab signal shows Restricting between fixed signals, you must immediately operate at the speed defined as Restricted Speed. This speed is the lowest permitted in the rules for a block under cab signaling restrictions, designed so you can stop in time for the next signal or obstacle and be prepared for any signal ahead. You wouldn’t continue at normal speed or at a higher caution pace, because the Restricting indication signals that conditions ahead require markedly reduced speed to maintain safety. Stopping completely is only necessary if the next fixed signal requires it; otherwise, the immediate action is to reduce to Restricted Speed, the defined limit for this situation.

When the cab signal shows Restricting between fixed signals, you must immediately operate at the speed defined as Restricted Speed. This speed is the lowest permitted in the rules for a block under cab signaling restrictions, designed so you can stop in time for the next signal or obstacle and be prepared for any signal ahead. You wouldn’t continue at normal speed or at a higher caution pace, because the Restricting indication signals that conditions ahead require markedly reduced speed to maintain safety. Stopping completely is only necessary if the next fixed signal requires it; otherwise, the immediate action is to reduce to Restricted Speed, the defined limit for this situation.