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原文传递 Roof Strength Testing and Real-World Roof Intrusion in Rollovers. Traffic Safety Facts, Research Note: Summary of Statistical Findings.

题名：	Roof Strength Testing and Real-World Roof Intrusion in Rollovers. Traffic Safety Facts, Research Note: Summary of Statistical Findings.
关键词：	automobiles,roof supports,rollover accidents/statistical analysis, crushing force, intrusion, roof strength, crashworthiness/statistical analysis, crushing force, intrusion, roof strength, crashworthiness
摘要：	This Research Note demonstrates a statistically significant relationship between the peak strength-to-weight ratio (SWR) obtained through laboratory roof strength testing and the maximum vertical roof intrusion in real-world rollovers from the National Automotive Sampling System Crashworthiness Data System (NASS-CDS). The results from both categorical analysis of vehicles with similar SWR measures and linear regression sup-port the hypothesis that passenger vehicles with a higher SWR measured in a roof crush test are likely to experi-ence less vertical roof intrusion in rollover crashes than vehicles with a lower SWR. Support for the hypothesis also remains when controlling for other possible fac-tors that may explain roof intrusion and in a sensitiv-ity analysis focused on the variance in the sampling weights. This finding complements NHTSAs previous work that demonstrated a relationship between vertical roof intrusion and injury risk in rollovers and supports the validity of SWR as a measure of roof strength. / Availability Note: Product reproduced from digital image. Order this product from NTIS by: phone at 1-800-553-NTIS (U.S. customers); (703)605-6000 (other countries); fax at (703)605-6900; and email at orders@ntis.gov. NTIS is located at 5301 Shawnee Road, Alexandria, VA, 22312, USA. / NTIS Prices: PC A02/MF A02 / Corporate Author Code: 033662000 / Classifivation: Unclassified report
报告类型：	科技报告