United States Department of Transportation
i
Profiles in driver distraction : effects of cell phone conversations on younger and older drivers
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2004-01-01
[PDF-227.72 KB]
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NTL Classification:NTL-SAFETY AND SECURITY-SAFETY AND SECURITY;NTL-SAFETY AND SECURITY-Human Factors;
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Abstract:Synopsis – Younger and older drivers conversing on a hands-free cell phone were found to have slower responses to random braking by the vehicle ahead. Cell phone use slowed the younger drivers’ responses to an extent that they were equivalent to the older drivers’ response times when they were not using a cell phone. The younger drivers responded 0.13 seconds more slowly, and the older drivers responded 0.17 seconds more slowly when conversing on a cell phone. Overall, use of cell phone resulted in 18% slower responses to the vehicle ahead braking.
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