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Citation |
Stein HS. Transp. Res. Rec. 1993; 1407: 24-34. |
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Copyright |
(Copyright © 1993, Transportation Research Board, National Research Council, National Academy of Sciences USA, Publisher SAGE Publishing) |
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DOI |
unavailable |
PMID |
unavailable |
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Abstract |
Detailed in this paper are the results of a comparison of accident data reported by motor carriers via the 50-T Form to the Office of Motor Carriers (OMC) with another independent source of similar accident data. This independent data source contains information from truck crashes that occurred on Interstate highways in Washington State that was collected as part of an independent truck safety study conducted by the Insurance Institute for Highway Safety (IIHS). The trucks in the independent data set were screened to determine which accidents should have been reported to OMC. Many comparisons were conducted to analyze the differences between trucks that reported to OMC versus those that did not and the accuracy of the information reported. This comparison found that only 40% of trucks involved in eligible crashes had their accident reported to OMC. Furthermore, many of the most important variables were not reported accurately. For example, of the 47 trucks with serious equipment defect identified in the Washington State Truck Study, only 3 reported defective equipment to OMC. Also, the truck configuration was reported incorrectly for about 20% of tractor-trailer trucks. Consequently, many past studies that have used the OMC 50-T Form data for detailed analysis of truck safety may be invalid. On the basis of the results of these comparisons, several recommendations are made in this study to revise the 50-T Form data and review its potential role in accident analysis. Language: en |