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Vehicle rollover caused by driver falling asleep

  • What happened?

    A worker left the site early because he was too tired to work.  
    While driving home (90 miles/144 km) he fell asleep.
    He swerved across the median, across oncoming traffic and down a ditch, rolling the vehicle over. 
    The safety features of the car (rated 4/5 on New Car Assessment Programme - NCAP) prevented serious injury or death.

    A white car with dents along the body of the car and smashed windows resulting from the vehicle rolling over.
  • Why did it happen?

    The worker had less than 3 hours sleep (due to a late arriving flight the night before).  He felt obligated to go to work.
    He used a car instead of the company-provided bus service.
    On his way back he felt sleepy, so he stopped and took a short break, but did not sleep.
    12 miles away from home, he fell asleep and the vehicle rolled over.

    A driver yawning with their eyes closed.
  • What did they learn?

    Identify the hazard: recognise when you (and others) are too tired to work or drive.
    Do not operate a vehicle when tired. A tired driver is like a drunk driver:
    - 17 hours awake = 0.05 blood alcohol content
    - 21 hours awake = 0.08 blood alcohol content
    - 24 hours awake = 0.10 blood alcohol content
    Use the company bus service (if provided).
    Ensure supplied cars have high New Car Assessment Programme ratings; this could save the driver’s life.

    What learn - icon
  • Ask yourself or your crew

    What other actions could have been taken?
    What can we do to better recognise when we, or colleagues, are too tired to work or drive?
    What are the potential driving hazards during a normal day and how can these be controlled?
    When the driver stopped for a break what should he have done differently?

    Ask your crew - icon
Published on 03/04/19 3559 Views

During the 90 miles (144 km) drive home from the site, a driver fell asleep due to a combination of factors and the vehicle rolled over. The safety features of the car prevented serious injury or fatality.