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Fatigue & Hours-of-Service Awareness

Why are monotonous, straight highway stretches a fatigue trigger even in daylight?

  • A.Daylight driving never causes fatigue
  • B.Only new drivers are affected by monotony
  • C.Low stimulation lets underlying sleepiness surface, so small steering corrections and attention fade sooner
  • D.Monotony improves reaction time
Correct answer

C. Low stimulation lets underlying sleepiness surface, so small steering corrections and attention fade sooner

Why

When the driving task demands little active input, an existing sleep debt shows itself quickly. Changing posture, stopping for a break, or napping addresses the cause, while simply trying harder does not.

Manual topic: Fatigue - Monotony · From the General Knowledge practice bank (GK-261).

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