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Citation |
Loftis KL, Swett KR, Martin RS, Meredith JW, Stitzel JD. Int. J. Crashworthiness 2014; 19(1): 57-70. |
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Copyright |
(Copyright © 2014, Informa - Taylor and Francis Group) |
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DOI |
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PMID |
unavailable |
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Abstract |
A National Automotive Sampling System-Crashworthiness Data System (NASS-CDS) based Similarity Scoring Methodology (SSM) is presented for the quantitative comparison of real-world crashes to crash tests. Using NASS-CDS 2000-2008, five categorical and five continuous crash, vehicle and occupant parameters were utilised for frontal and side impacts. Mahalanobis metric results revealed that 1% of frontal and 23% of side NASS-CDS cases scored received similarity scores of <0.14 demonstrating greater similarity to standard crash tests. These included 20,334 frontal and 442,511 side impact case occupants (weighted). On average, the best scores occurred for NASS-CDS cases compared to FMVSS 214 side crash tests. The majority of real-world crashes had lower delta-Vs and maximum crush than associated crash tests. The results will aid in the study of occupant safety and vehicle crashworthiness by helping researchers identify population groups to study real-world injuries versus the injury risk predicted by anthropomorphic test devices. |