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Approximately 2 million roadside inspections of commercial motor vehicles (CMVs) are conducted annually, primarily through the joint Federal and State Motor Carrier Safety Assistance Program (MCSAP). Vehicles and drivers with serious safety problems are placed out-of-service (OOS) and are not allowed to continue operations until the condition is corrected. Inspections are not conducted randomly; inspectors focus on vehicles that pose safety risks. While this is a reasonable enforcement strategy, it limits the Federal Highway Administration's (FHWA's) ability to use these data to estimate the "true" OOS rate, i.e., the percentage of vehicles and drivers that would be placed OOS if all vehicles were inspected. To estimate this rate, the FHWA conducted the National Fleet Safety Survey (NFSS) in the summer of 1996, during which a number of States randomly inspected CMVs. The FHWA decided to take advantage of this unique survey to gather information not regularly obtained during inspections, including data on driver training and experience. In addition, because of widespread interest in the safety of hazardous material (HM) shipments, vehicles carrying placardable quantities of HM were oversampled, whereby an extra number of HM vehicles was chosen for inspection. This Analysis Brief presents a summary of the 1996 National Fleet Safety Survey which is fully documented in a separate report (FHWA-MC-98-015).
New safety technologies for commercial motor vehicles have drawn increased awareness among carriers, shippers, insurers, and government in terms of th...
This report documents the Safety Measurement System (SMS) methodology developed to support the Comprehensive Safety Analysis 2010 (CSA 2010) Initiativ...
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