Trains operating on any signal indication that requires approaching the next signal prepared to stop must operate at a speed that permits stopping within one-half the range of vision, not exceeding 20 MPH, until which condition?

Trains operating on any signal indication that requires approaching the next signal prepared to stop must operate at a speed that permits stopping within one-half the range of vision, not exceeding 20 MPH, until which condition?

• A. Leading end of the train passes a more favorable signal or reaches the far end of the yard limits.
• B. The entire train has cleared all turnouts and crossovers.
• C. The train is within the next block.
• D. The dispatcher authorizes a higher speed.

Answer: (A)

When a signal ahead requires you to be prepared to stop, you must move at a speed that lets you stop within half the range of vision, not to exceed 20 mph. This restriction stays in effect until you pass a signal that has a more favorable aspect (allowing proceed) or you reach the far end of the yard limits. That point marks the transition where you can then proceed under the next signal’s guidance or normal movement rules. The other options don’t define the end of the restricted speed: turning all the way through turnouts or being within the next block aren’t the trigger, and while a dispatcher can authorize different speeds, the rule specifies the stop-and-go boundary as you pass a more favorable signal or reach yard limits.

When a signal ahead requires you to be prepared to stop, you must move at a speed that lets you stop within half the range of vision, not to exceed 20 mph. This restriction stays in effect until you pass a signal that has a more favorable aspect (allowing proceed) or you reach the far end of the yard limits. That point marks the transition where you can then proceed under the next signal’s guidance or normal movement rules. The other options don’t define the end of the restricted speed: turning all the way through turnouts or being within the next block aren’t the trigger, and while a dispatcher can authorize different speeds, the rule specifies the stop-and-go boundary as you pass a more favorable signal or reach yard limits.