Movements at Restricted Speed must comply with Rule 80 by ensuring the movement can be stopped within what distance?

Movements at Restricted Speed must comply with Rule 80 by ensuring the movement can be stopped within what distance?

• A. one half the range of vision
• B. one quarter the range of vision
• C. the full range of vision
• D. one tenth the range of vision

Answer: (A)

Movements at restricted speed must be able to stop within one-half the range of vision. Range of vision is the distance you can clearly see ahead on the track—signals, switches, and any potential hazards. This rule protects you by giving you a stopping margin even when visibility or reaction time is limited. If you can see 1,000 feet ahead, you must be able to stop within 500 feet. The other distances would require stopping sooner or later than the standard set by the rule, which is not how restricted-speed operations are defined.

Movements at restricted speed must be able to stop within one-half the range of vision. Range of vision is the distance you can clearly see ahead on the track—signals, switches, and any potential hazards. This rule protects you by giving you a stopping margin even when visibility or reaction time is limited. If you can see 1,000 feet ahead, you must be able to stop within 500 feet. The other distances would require stopping sooner or later than the standard set by the rule, which is not how restricted-speed operations are defined.