Role of Microcompiuters in Highway Weigh-in-Motion Systems

by Clyde E. Lee, Univ of Texas at Austin, Austin, TX, USA,

Document Type: Proceeding Paper

Part of: Microcomputer Applications in Transportation II


Microcomputer technology makes it possible to digitize the signals, calculate the desired factors, and record and display the information in real time at the weigh-in-motion (WIM) site. Currently, WIM systems are used in enforcement mostly to sort suspected weight violators from the traffic stream for confirmation weighing on conventional scales. Recent studies indicate, however, that low-speed WIM can produce weight estimates that are as accurate as the weights obtained with conventional truck-weighing techniques and that vehicles can be weighed in a fraction of the time normally required. Future applications of WIM might include actual law-enforcement weighing, inventory control, cost-allocation, and other data-based activities.

Subject Headings: Vehicles | Trucks | Traffic management | Maintenance and operation | Highway bridges | Vehicle-pavement interaction | Vehicle loads

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