United States Department of Transportation
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TRIS Online Accession Number:00819625
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NTL Classification:NTL-FREIGHT-Trucking Industry;NTL-PLANNING AND POLICY-Management Systems;NTL-SAFETY AND SECURITY-Vehicle Design;NTL-OPERATIONS AND TRAFFIC CONTROLS-OPERATIONS AND TRAFFIC CONTROLS;NTL-OPERATIONS AND TRAFFIC CONTROLS-Traffic Control Devices;NTL-REFERENCES AND DIRECTORIES-Statistics;
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Abstract:The Truck Characteristics Study seeks to develop a better understanding of the physical characteristics of the national truck fleet. With automatic vehicle classifiers (AVC) and weigh-in-motion devices (WIM), only axle spacing and weight information is obtained. No information about body type or type of cargo carried is available. With a better understanding of the truck fleet, particularly some information about the truck body type, it should be possible to evaluate the relationship between body type, weights, axle spacings, and cargo carried. To accomplish this, the study explored the scope of available sources of current information about the physical characteristics of trucks, compiled several data sources, and analyzed these sources for the purpose of improving the accuracy of automatic vehicle classifiers. The primary objective of the project was to find patterns of axle spacings that correlate with body types, which can then be used to improve algorithms used by axle-based automatic vehicle classifiers and to estimate travel by body type from axle-based vehicle classification data. Tables, figures, references, appendices. 174p.
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