Comparison of delta-v and occupant impact velocity crash severity metrics using event data recorders

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Gabauer, D. J.¹; Gabler, H. C.¹

Comparison of delta-v and occupant impact velocity crash severity metrics using event data recorders

50th Annual Proceedings, Association for the Advancement of Automotive Medicine (AAAM)

Affiliations

¹Center for Injury Biomechanics, Virginia Tech, Blacksburg, VA
Abstract

This research compares the ability of delta-V and the occupant impact velocity (OIV), a competing measure of crash severity, to predict occupant injury in real world collisions. A majority of the analysis is performed using 191 cases with vehicle kinematics data from Event Data Recorders (EDRs) matched with detailed occupant injury information. Cumulative probability of injury risk curves are generated using binary logistic regression for all data, a belted subset, and an unbelted subset. By comparing the available fit statistics and performing a separate ROC curve analysis, the more computationally intensive OIV is found to offer no significant predictive advantage over delta-V.

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Cited By (13)

Year	Entry
2012	Stigson H, Kullgren A, Rosén E. Injury risk functions in frontal impacts using data from crash pulse recorders. In: 56th Annual Proceedings, Association for the Advancement of Automotive Medicine (AAAM). October 14-17, 2012; Seattle, WA.267-276.
2011	Stigson H, Kullgren A. Effect of side impact protection in reducing injuries. In: Proceedings of the 22nd International Technical Conference on the Enhanced Safety of Vehicles (ESV). June 13-16, 2011; Washington, DC.
2017	Hasegawa T, Takahashi H, Udaka S. Clarification of priority factors for reducing traffic accident fatalities in the U.S. and benefit estimation of AEB system for oncoming vehicles. In: Proceedings of the 25th International Technical Conference on the Enhanced Safety of Vehicles (ESV). June 5-8, 2017; Detroit, MI.
2017	Wusk G, Gabler H. Evaluation of vehicle-based crash severity metrics using event data recorders. In: Proceedings of the 25th International Technical Conference on the Enhanced Safety of Vehicles (ESV). June 5-8, 2017; Detroit, MI.
2019	Minemura A, Hasegawa T. Estimation of effect of crossing scenario AEB system to help reduce traffic accidents. In: Proceedings of the 26th International Technical Conference on the Enhanced Safety of Vehicles (ESV). June 10-13, 2019; Eindhoven, Netherlands.
2008	Kullgren A. Dose-response models and edr data for assessment of injury risk and effectiveness of safety systems. In: Proceedings of the 2008 International IRCOBI Conference on the Biomechanics of Impact. September 17-19, 2008; Bern, Switzerland.3-14.
2012	Strandroth J, Rizzi M, Kullgren A, Tingvall C. Head‐on collisions between passenger cars and heavy goods vehicles: injury risk functions and benefits of Autonomous Emergency Braking. In: Proceedings of the 2012 International IRCOBI Conference on the Biomechanics of Injury. September 12-14, 2012; Dublin, Ireland.342-351.
2016	Yamada K, Gotoh M, Kitagawa Y, Yasuki T. Simulation of occupant posture change during autonomous emergency braking and occupant kinematics in frontal collision. In: Proceedings of the 2016 International IRCOBI Conference on the Biomechanics of Injury. September 14-16, 2016; Malaga, Spain.261-274.
2019	Brumbelow ML. Front crash injury risks for restrained drivers in good-rated vehicles by age, impact configuration, and EDR-based delta V. In: Proceedings of the 2019 International IRCOBI Conference on the Biomechanics of Injury. September 11-13, 2019; Florence, Italy.560-574.
2008	Gabauer DJ, Gabler HC. Comparison of roadside crash injury metrics using event data recorders. Accid Anal Prev. March 2008;40(2):548-558.
2013	Kusano KD. Methodology for Determining Crash and Injury Reduction from Emerging Crash Prevention Systems in the U.S. [PhD thesis]. Virginia Polytechnic Institute and State University; 2013.
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2018	Holmes DA. The Effect of Lane Departure Warning Systems on Cross-Centerline Crashes [Master's thesis]. Virginia Polytechnic Institute and State University; April 16, 2018.