Skip to content

    Health & Balance

    Font Size
    A
    A
    A

    Driving + Cell Phones = Big Road Risk

    Study: Chatting on Cell Phones While Driving May Be as Bad as Driving Drunk
    By
    WebMD Health News
    Reviewed by Louise Chang, MD

    June 29, 2006 -- Driving under the influence of a cell phone may be a major road hazard, according to a University of Utah study.

    "The impairments associated with using a cell phone while driving can be as profound as those associated with driving while drunk," write psychology professor David Strayer, PhD, and colleagues in the summer issue of the journal Human Factors.

    Strayer's team tested the driving skills -- on a simulator, not real roads -- of 25 men and 15 women under four conditions:

    • No distractions
    • Talking on a hand-held cell phone about a favorite subject
    • Talking on a hands-free cell phone headset about a favorite subject
    • Driving while drunk (blood-alcohol concentration of 0.08%) without talking on a cell phone

    Driving with a blood-alcohol concentration of 0.08% or higher is against the law in all U.S. states and Washington, D.C.

    Chatting Behind the Wheel

    The simulator resembled a Ford Crown Victoria sedan. Participants were to drive along a simulated stretch of highway without crashing into the car ahead of them, which braked at unpredictable times.

    The drivers were 22-34 years old (average age: 25). They had good eyesight, valid drivers' licenses, and an average of eight years of driving experience. More than three-quarters owned a cell phone; almost all of those drivers -- 87% -- said they have used a cell phone while driving.

    In the cell phone tests, participants chatted on a cell phone about a favorite topic. They spoke with a research assistant, and they didn't have to dial the phones or answer the phones while driving.

    Cell Phone Crashes

    While on either type of cell phone (hands-free or hand-held), drivers were more likely to rear-end the car ahead of them than when they were undistracted. They were also slower to brake and to accelerate after braking while on either type of cell phone.

    No differences were seen between the use of hands-free or hand-held cell phones while driving. The conversation itself -- not the device -- may be the biggest distraction, note Strayer and colleagues.

    "Clearly the safest course of action is not to use a cell phone while driving," the researchers write. They add that when they interviewed participants after the study, most hadn't realized that their driving was worse while on the cell phone.

    Today on WebMD

    woman in yoga class
    6 health benefits of yoga.
    beautiful girl lying down of grass
    10 relaxation techniques to try.
     
    mature woman with glass of water
    Do you really need to drink 8 glasses of water a day?
    coffee beans in shape of mug
    Get the facts.
     
    Take your medication
    Slideshow
    Hand appearing to hold the sun
    Article
     
    Hungover man
    Slideshow
    Welcome mat and wellington boots
    Slideshow
     
    Woman worn out on couch
    Article
    Happy and sad faces
    Quiz
     
    Fingertip with string tied in a bow
    Article
    laughing family
    Quiz