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    Subject Term: "Mathematical analysis"

    2 publications with a total of 3 open recommendations including 1 priority recommendation
    Director: Fleming, Susan A
    Phone: (202) 512-2834

    1 open recommendations
    Recommendation: Congress may wish to consider directing DOT to study and provide a report to Congress identifying approaches for extracting, storing, and analyzing electronically collected motor carrier drivers' schedule data, including the potential benefits, privacy, and cost concerns, and options for how such concerns could be mitigated.

    Agency: Congress
    Status: Open

    Comments: When we confirm what actions Congress has taken in response to this matter for consideration, we will provide updated information.
    Director: Fleming, Susan A
    Phone: (202) 512-2834

    2 open recommendations
    including 1 priority recommendation
    Recommendation: To improve the CSA program, the Secretary of Transportation should direct the FMCSA Administrator to revise the SMS methodology to better account for limitations in drawing comparisons of safety performance information across carriers; in doing so, the Secretary of Transportation should direct the FMCSA Administrator to conduct a formal analysis that specifically identifies: (1) limitations in the data used to calculate SMS scores including variability in the carrier population and the quality and quantity of data available for carrier safety performance assessments, and (2) limitations in the resulting SMS scores including their precision, confidence, and reliability for the purposes for which they are used.

    Agency: Department of Transportation
    Status: Open
    Priority recommendation

    Comments: The Department has not concurred with the recommendation, does not agree with our conclusions, and has requested that we close the recommendation as not implemented. For example, the Federal Motor Carrier Safety Administration (FMCSA) believes that implementing GAO's recommendation would result in a prioritization tool that only provides meaningful information about large carriers with little, if any, practical applications for assessing the safety performance of small and medium carriers that are involved in the majority of commercial motor vehicle related crashes. However, many small and medium carriers are not inspected frequently enough for FMCSA to reliably assess their crash risk using the current SMS methodology. If FMCSA continues using its current system, it may devote significant intervention resources targeting carriers that do not pose the greatest risk. FMCSA acknowledges that more data and observations would improve SMS from a statistical confidence interval perspective, which the Agency will continue to work towards. In addition, the National Academies of Sciences (NAS) conducted a congressionally-mandated evaluation of SMS, including the system's data accuracy and sufficiency, and in 2017 made several recommendations to improve FMCSA's ability to identify high-risk carriers more effectively. FMCSA is currently developing an action plan in response to the NAS recommendations but has not yet provided timeframes for completing or implementing the plan. GAO continues to believe our evidence was sufficient to support this recommendation and that absent FMSCA action, the agency will continue to lack reliable data to assess carriers that pose the greatest safety risks. GAO will review any SMS methodology revisions FMCSA implements to better account for limitations in comparing safety performance across carriers.
    Recommendation: To improve the CSA program, the Secretary of Transportation should direct the FMCSA Administrator to ensure that any determination of a carrier's fitness to operate properly accounts for limitations we have identified regarding safety performance information.

    Agency: Department of Transportation
    Status: Open

    Comments: The Federal Motor Carrier Safety Administration (FMCSA) agreed with the basic principles that GAO addressed in this area, but disagreed with GAO's characterization of FMCSA's proposed Safety Fitness Determination (SFD) rule. In January 2016, FMCSA issued a notice of proposed rulemaking (NPRM), which proposed a revised methodology for issuance of a safety fitness determination for motor carriers. Specifically, the new methodology would have determined when a motor carrier is not fit to operate commercial motor vehicles in or affecting interstate commerce based on the carrier's on-road safety data; an investigation; or a combination of both. However, in March 2017 FMCSA withdrew the NPRM. The Department plans, in part, to review the National Academies of Sciences (NAS) congressionally-mandated evaluation of SMS to determine whether further rulemaking action is necessary to revise the safety fitness determination process.