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From The National Safety Council:
Distracted Driving Fact Sheet
Distractions are the leading cause of motor vehicle crashes and the number one distraction is cell phones.
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Distractions are the leading cause of motor vehicle crashes and the number one distraction is cell phones. The use of a cell phone while driving is a very high-risk behavior with significant impact on society because of the vast number of people engaging in the behavior and the cognitive distractions the driver experiences when engaged in a cell phone conversation. More than 50 peer-reviewed scientific studies have identified the risks associated with cell phone use while driving.
CTIA − The Wireless Association reports there are more than 270 million cell phone subscribers, this is up dramatically from 100 million subscribers in 2000. An estimated 110 billion text messages were sent monthly in 2008.
A Nationwide Insurance public opinion poll showed 81 percent of the public admitted to talking on a cell phone while driving. And NHTSA estimates that 12 percent of drivers at any point during the day are talking on cell phones while driving.
Drivers who use cell phones are four times more likely to be involved in a crash. Two different studies found this same conclusion, a 1997 New England Journal of Medicine examination of hospital records and 2005 Insurance Institute for Highway Safety study linking crashes to cell phone records.
No difference exists in the cognitive distraction (the mental process of knowing, which includes awareness, judgment and perception) between handheld and hands-free devices, according to simulator studies conducted at the Univ. of Utah.
One recent simulator study compared drivers using cell phones and drivers impaired by alcohol. Cell phone users had slower reaction times than drivers with .08 BAC and slower reaction to vehicles braking in front of them.
Many businesses and organizations understand the risk and are already taking action. Among NSC members who responded to a 2009 survey, 58 percent (1,163 out of 2,004 respondents) said their organization had a cell phone policy of some kind. Of those, 99 percent said the policy did not affect productivity and 20 percent saw decreases in employee crash rates and property damage.
A Carnegie Mellon study took pictures of the brain while drivers listened to sentences and drove on a simulator. The drivers listening to sentences had a 37 percent reduction in spatial awareness, which can directly contribute to cognitive distraction.
Talking to a passenger while driving is significantly safer than talking on a cell phone, a University of Utah study found. Passengers, unlike cell phone conversations, can make the driver aware of changing road conditions they might not see and can stop the conversation if traffic conditions warrant.
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Information and recommendations are compiled from sources believed to be reliable. The National Safety Council makes no guarantee as to and assumes no responsibility for the correctness, sufficiency or completeness of such information or recommendations. Other or additional safety measures may be required under particular circumstances.
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