Which scenario correctly reflects the requirement for movement under restricted speed after passing a signal?

• A. The movement may continue indefinitely at restricted speed
• B. The movement may proceed until the leading wheels pass the next signal and that signal is more favorable than a restricting or a point where movement at restricted speed is no longer required
• C. The movement may proceed until the track is completely clear
• D. The movement may proceed only after receiving a written authorization

Answer: (B)

After passing a signal that requires restricted speed, you may continue at restricted speed until the front of the train passes the next signal and that signal is more favorable than a restriction, or until you reach a point where restricted speed is no longer required. This creates a clear moment to reassess based on the next signal’s indication and ensures you can react to any hazards ahead before returning to normal speed. The leading wheels passing the next signal is the boundary that signals how you proceed—the state of that next signal tells you whether restricted speed still applies or you can resume regular speed.

Why this fits best: it matches the rule that movement under restricted speed continues past a signal only until you reach the next signal that is not restricting or until the restriction no longer applies, providing a safe and predictable transition based on signaling.

Why the other options don’t fit: continuing indefinitely at restricted speed ignores the next signal and the boundary it provides; moving until the track is completely clear isn’t how restricted-speed rules operate since a restricting signal can still be present even with a clear track; and needing a separate written authorization isn’t part of standard signal-based restricted-speed procedures.