Development of Low-Cost Weigh-in-Motion (WIM) and Response Spectra Techniques: Phase I of “Development of a Cost-effective Sensing System for Integrated Traffic and Pavement Response Monitoring in Support of Pavement Management”
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2022-09-01
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Alternative Title:Development of Low-Cost Weigh-in-Motion (WIM) and Response Spectra Techniques
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Edition:Final Report, 3/1/2019 – 8/15/2022
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Abstract:In recent years, an increase in heavy truck traffic has resulted in damage and service life reduction to roadway infrastructure. As a result, the demand for more weight compliance checkpoints has increased. Weight checkpoint operations have increasingly shifted to the adoption of weigh-in-motion (WIM) as a means of ensuring weight compliance. However, installing permanent WIM systems can be costly, and budget constraints can often lead to removal of weight enforcement altogether. To remedy this, a low-cost WIM system that utilizes off-the-shelf components has been developed. The system, dubbed the Roadway Infrastructure and Vehicle Information System (RIVIS), uses an array of roadside, surface-mounted accelerometers to measure pavement response to a moving load. The system has been deployed for limited testing and has shown promise for vehicle detection from pavement response. Preliminary analysis of the collected data has been completed and shows that the system has potential for use as a combined traffic monitoring and WIM system. Future work will include refinement of the system to execute identification and weighing tasks.
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