The Carrier Intervention Effectiveness Model (CIEM) provides the Federal Motor Carrier Safety Administration (FMCSA) with tools to measure the safety benefits produced by interventions. The CIEM does not, however, measure the efficiency of these interventions, in terms of benefits derived per agency dollar spent. This report combines existing CIEM results with recent data from the agency’s 2018 Investigation Cost Survey to provide such estimates.
A Malmquist Index is used to measure productivity and efficiency for U.S. general freight motor carriers in the 1990s. The investigator examines the r...
The objectives of this investigation were to evaluate the latest prestressed concrete bridge girder designs being used in the United States and to det...
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United States Department of Transportation
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