Evaluation of the Field Relevance of Several Injury Risk Functions.

This paper conducted an evaluation of the four injury risk curves proposed in the National Highway Traffic Safety Administration’s New Car Assessment Program (NHTSA NCAP) that are used for estimating the risk of abbreviated injury score (AIS)>= 3 injuries to the head, neck, chest and AIS>=2 injury to the Knee-Thigh-Hip (KTH). As represented in the National Automotive Sampling System (NASS), the predicted injury risk to the four body regions based on driver dummy responses in over 300 frontal NCAP tests were compared against those to drivers involved in real-world crashes of similar severity. The results described in this paper show that the predicted injury risks to the head and chest were slightly below those in NASS, and the predicted risk for the knee-thigh-hip complex was substantially below that observed in the NASS. The predicted risk for the neck by the Nij curve was greater than the observed risk in NASS by an order of magnitude due to the Nij risk curve predicting a non-zero risk when Nij = 0. An alternative and published Nte risk curve produced a risk estimate consistent with the NASS estimate of neck injury. Similarly, an alternative and published chest injury risk curve produced a risk estimate that was within the bounds of the NASS estimates. No published risk curve for femur compressive load could be found that would give risk estimates consistent with the range of the NASS estimates. This paper recommends that additional work on developing a femur compressive load risk curve be conducted in the future.

Language

  • English

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  • Accession Number: 01342450
  • Record Type: Publication
  • ISBN: 9780768057225
  • Files: TRIS, ATRI
  • Created Date: Jun 23 2011 9:06AM