Browsing by Subject "Compliance reviews"
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Item Effect of Compliance Reviews on Out-of-Service Rates of Region 5 Carriers: A Study(Minnesota Department of Transportation, 1999-07) Khosa, Vikram; Cherkassky, VladimirThis Phase II study involved studying the short-term and long-term effects of the Compliance Review (CR) programs conducted in the Region 5 states of Wisconsin, Indiana, Michigan, Minnesota, Ohio, and Illinois on the Out-of-Service (OOS) rates of interstate freight-carriers based in those states. A preliminary analysis of the inspections data revealed low OSS rates based on inspection records--across all level of inspection--for the years 1993-94, indicating defective collection/interpretation of data and thereby invalidating any OOS rate analysis for this time period. Also, it was found that Level 1 and 2 inspections together constitute nearly 80 percent of all inspections records, thus marginalizing the effect of the other levels of inspection on the final results of this analysis. The results of both the short-term and long-term effects of OOS rate analysis suggest an overall positive effect of the Compliance Review program on the reduction of OOS (Event and Violation) rates of the carriers. These results are consistent over the rest of the time period (1995-97) and across three levels of inspection (Levels 1, 2, and 3). The conclusions drawn about the nature of the effects of a Compliance Review could be much better validated if the currently spurious inspections data for the years 1993-94 were restored, or a fresh analysis using later available data (1997-99) were carried out based on the same algorithms.Item Motor Carrier Compliance Reviews: Measuring Their Impact on Improved Safety Performance Among Interstate Freight Motor Carriers Based in Minnesota(Minnesota Department of Transportation, 1997-05) Pagel, David; Cherkassky, VladimirThis study seeks to measure the safety performance of compliance reviews (CRs) conducted in Minnesota under the Motor Carrier Safety Assistance Program (MCSAP). This study employs data gathered by the Federal Highway Administration surrounding two MCSAP activities: compliance reviews and roadside inspections. It specifically investigates the change in a carrier's annual out-of-service violation rate (OOS) in response to receiving a review or a higher number of inspections. A measurable reduction in a carrier's OOS rate occurs in the year after a CR, according to the data. The annual OOS rate appears to be a viable measure of the impact of a compliance review, given that a carrier's vehicles and drivers are adequately inspected in the year following a CR.