Relationship of Near-Crash/Crash Risk to Time Spent on a Cell Phone While Driving

Traffic Injury Prevention
Charles M FarmerFeng Guo

Abstract

The objective of this study was to examine in a naturalistic driving setting the dose-response relationship between cell phone usage while driving and risk of a crash or near crash. How is the increasing use of cell phones by drivers associated with overall near-crash/crash risk (i.e., during driving times both on and off the phone)? Day-to-day driving behavior of 105 volunteer subjects was monitored over a period of 1 year. A random sample was selected comprised of 4 trips from each month that each driver was in the study, and in-vehicle video was used to classify driver behavior. The proportion of driving time spent using a cell phone was estimated for each 3-month period and correlated with overall crash and near-crash rates for each period. Thus, it was possible to test whether changes in an individual driver's cell phone use over time were associated with changes in overall near-crash/crash risk. Drivers in the study spent 11.7% of their driving time interacting with a cell phone, primarily talking on the phone (6.5%) or simply holding the phone in their hand or lap (3.7%). The risk of a near-crash/crash event was approximately 17% higher when the driver was interacting with a cell phone, due primarily to actions of reachi...Continue Reading

References

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Citations

May 23, 2018·The Journals of Gerontology. Series A, Biological Sciences and Medical Sciences·Carrie HuisinghGerald McGwin
Aug 2, 2020·Accident; Analysis and Prevention·Huiying MaoFeng Guo
Jun 22, 2020·Journal of Safety Research·Thomas SeacristHelen Loeb
May 14, 2021·Accident; Analysis and Prevention·Xiaoqiang KongYunlong Zhang

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