United States Department of Transportation
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Assessment of Motorcycle Safety in Wyoming: Fatal and Severe Crashes, Contributing Factors and Potential Countermeasures
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2022-11-01
[PDF-3.93 MB]
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Edition:Final Report (March 2022 – November 2022)
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Abstract:Motorcycle riders and passengers are much more likely to be killed or severely injured in a crash, and on average about 15 percent of all traffic fatalities include motorcyclists. The study uses 12 years of motorcycle crash data (2008-2019) from Wyoming on crash, vehicle and person levels, and applies multinomial logistic and Bayesian regression modeling to determine the effects of various exposure measures on injury severity. On the crash level it was found that the most common factors affecting injury severity in motorcycle-related crashes include vehicle maneuver, driver action, junction relation, alcohol, animal and speed involvement, and helmet use. The vicinity of intersections significantly increases the odds of injury crashes in all urban and the rural multi-vehicle crashes compared to no injury.
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