Characterization and Development of Truck Load Spectra and Growth Factors for Current and Future Pavement Design Practices in Louisiana: Technical Summary Report
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2011-07-01
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Abstract:This research study primarily addresses the current traffic characterization techniques used in Louisiana for pavement design practices in order to identify critical changes needed as well as certain gaps and areas of potential development in the traffic monitoring process statewide. In addition, the study developed Louisiana’s traffic load spectra from the available truck traffic data sources and updated Louisiana’s Load Equivalency Factor (LEF) tables. More specifically, the research objectives of this study were to: (1) review current practices adopted by the state of Louisiana on traffic data collection within the scope of this study, (2) develop a strategic plan to improve the current traffic data monitoring program, (3) evaluate the quality of Louisiana’s traffic data, (4) develop the traffic load spectra and update the current LEF tables in Louisiana using the available traffic data, and (5) make recommendations on future implementation of the MEPDG in Louisiana.
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