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Difficulty: MediumDriver Fatigue, Drowsiness, and Emotional Distraction

While driving on a long highway trip, a motorist notices difficulty maintaining a steady speed and realizes they cannot recall the last few miles driven—a clear warning sign of drowsiness and highway hypnosis. Which of the following is the only safe and effective action for the driver to take?

  1. Exit the highway safely at a rest area or designated parking spot to get sufficient sleep before continuing to drive.Answer
  2. B
    Open the driver side window and direct cold air from the vehicle's air conditioner toward the face.
  3. C
    Increase the vehicle's speed slightly to complete the journey faster and minimize total driving time.
  4. D
    Maintain the current route while increasing following distance to four seconds as a safety buffer.

Answer

Exit the highway safely at a rest area or designated parking spot to get sufficient sleep before continuing to drive.
The correct answer correctly identifies that stopping in a safe area to rest or sleep is the only effective, long-term solution to driver fatigue. Physiological drowsiness cannot be overcome by temporary sensory stimulation or minor driving adjustments.

Step-by-Step Solution

1
Identify the driver condition and symptoms
Inability to recall recent miles and fluctuating vehicle speed indicate severe driver fatigue and highway hypnosis.
Recognizing early physical and cognitive warning signs of drowsiness is critical for crash prevention.
2
Evaluate potential countermeasures
Sensory adjustments (cold air, music) or adjusting driving distance do not restore cognitive alertness; only rest resolves sleep deprivation.
Micro-sleep episodes occur involuntarily when severe sleep debt is present.
3
Select the proper safety procedure
Pulling off the roadway safely to sleep is the only effective solution.
Eliminating impaired driving hazards requires removing the root cause—fatigue.

Key Concept

Driver Drowsiness Countermeasures and Rest Requirements
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Topics

Driver Fatigue, Drowsiness, and Emotional Distraction

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