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原文传递 Evaluation of 2007 Texas Crash Data Reported to MCMIS Crash File.

题名：	Evaluation of 2007 Texas Crash Data Reported to MCMIS Crash File.
作者：	D. Blower; A. Matteson;
关键词：	accident statistics,crashes;underreporting, motor carriers, data quality, severity threshold;
摘要：	This report is part of a series evaluating the data reported to the Motor Carrier Management Information System (MCMIS) Crash File undertaken by the Center for National Truck and Bus Statistics at the University of Michigan Transportation Research Institute. This report examines the factors that are associated with reporting rates for the state of Texas. Evaluating Texas data in the MCMIS Crash file presented unique problems. Gaps in the PAR data made difficult to identify vehicles that meet the MCMIS vehicle type criteria with confidence or to cleanly identify crashes meeting the severity threshold. Alternative methods were developed to evaluate reporting indirectly. The result of each method was consistent with the conclusion that Texas reporting is substantially complete. No evidence was found that would tend to show underreporting or overreporting. Missing data rates are low for most variables, and that data reported are consistent. However, it is emphasized that gaps in the Texas data make it impossible to directly measure crash reporting rates. / Supplementary Notes: Sponsored by Federal Motor Carrier Safety Administration, Washington, DC. / 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 A04/MF A04 / NTIS In-house Control Codes: umtri/dotmcs;12111,1101
报告类型：	科技报告