car truck accidents

car truck accidents

Identifying Unsafe Driver Actions
that Lead to Fatal Car-Truck Crashes

Prepared by

Prepared for

Lidia P. Kostyniuk, Fredrick M. Streff,
and Jennifer Zakrajsek

AAA Foundation for Traffic Safety

University of Michigan
Transportation Research Institute

1440 New York Avenue, N.W., Suite 201
Washington, DC 20005
www.aaafoundation.org

April 2002

Cover photo: J. Scott Osberg/AAA Foundation for Traffic Safety

Contents
Acknowledgments ................................................................................................................................................................................ii
Executive Summary ..........................................................................................................................................................................iii
Introduction ..............................................................................................................................................................................................1
Methodology ..............................................................................................................................................................................................2
Chapter 1. The First Stage of Research: Identifying Unsafe Driver Actions
Bayesian Approach ................................................................................................................................................................................5
Data ................................................................................................................................................................................................................6
Estimating Likelihood Ratios ....................................................................................................................................................10
Conclusions...

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