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FMCSA Safety Program Effectiveness Measurement: Carrier Intervention Effectiveness Model, Version 1.1 - Report for FY 2013 Interventions: Analysis Brief
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  • Abstract:
    The Carrier Intervention Effectiveness Model (CIEM) provides the Federal Motor Carrier Safety Administration (FMCSA) with a tool for measuring the safety benefits of carrier interventions conducted under the Compliance, Safety, Accountability (CSA) enforcement program. The CSA program includes an array of carrier intervention types that replace the universally-implemented compliance review that was used as part of the previous enforcement model. The new enforcement model was designed to improve the level of safety in the operation of commercial motor vehicles. Using a phased approach, FMCSA began implementing the CSA program in 2010. During the implementation period, some carriers were still subject to compliance reviews under the earlier enforcement program. The safety impacts of these compliance reviews were previously measured by the Compliance Review Effectiveness Model (CREM). The new model, CIEM, incorporates both compliance reviews and additional intervention types when assessing safety benefits. Additional intervention types include: - Warning letters. - Offsite investigations. - Onsite focused investigations. - Onsite comprehensive investigations. This approach yields national-level measurements of the effectiveness of FMCSA's current carrier interventions. Table 1 shows the safety benefits of all interventions, as calculated by the CIEM, for fiscal years (FYs) 2011-13. In 2013, carrier interventions led to an estimated 7,256 crashes prevented, 4,355 injuries prevented, and 229 lives saved.

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