The Accuracy of Velocity Change Estimates in Small Overlap Frontal Crashes

  • Small overlap frontal crashes are defined by a damage pattern with most of the vehicle deformation concentrated outboard of the main longitudinal structures. These crashes are prominent among frontal crashes resulting in serious and fatal injuries, even among vehicles that perform well in regulatory and consumer information crash tests. One of the critical aspects of understanding these crashes is knowing the crash speeds that cause the types of damage associated with serious injuries. Laboratory crash tests were conducted using 12 vehicles in three small overlap test conditions: pole, vehicle-to-vehicle collinear, and vehicle-to-vehicle oblique (15-degree striking angle). Field reconstruction techniques were used to estimate the delta V for each vehicle, and these results were compared with actual delta V values based on vehicle accelerometer data. Estimated delta Vs were 50% lower than actual values. Velocity change estimates for small overlap frontal crashes in databases such as NASS-CDS significantly underestimate actual values.

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Author:C.P. Sherwood, D.S Zuby, J.M. Nolan, D.A. Aylor
Document Type:Conference Proceeding
Date of Publication (online):2012/08/03
Contributing corporation:Insurance Institute for Highway Safety <Ruckersville, Va.>
Release Date:2012/08/03
Tag:Analyse (math); Anfahrversuch; Frontalzusammenstoß; Geschwindigkeit; Konferenz; Unfallrekonstruktion; Verletzung; Veränderung; Überlappung
Analysis (math); Conference; Impact test; Injury; Modification; Overlapping; Reconstruction (accid); Speed
Source:4rd International Conference on ESAR "Expert Symposium on Accident Research", S. 114-119
Institutes:Sonstige / Sonstige
Dewey Decimal Classification:6 Technik, Medizin, angewandte Wissenschaften / 62 Ingenieurwissenschaften / 620 Ingenieurwissenschaften und zugeordnete Tätigkeiten
collections:BASt-Beiträge / ITRD Sachgebiete / 81 Unfallstatistik
BASt-Beiträge / Tagungen / International Conference on ESAR / 4th International Conference on ESAR

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