Cost-Effectiveness Analyses of Maintenance Treatments for Low- and Moderate-Traffic Asphalt Pavements in Tennessee
Publication: Journal of Transportation Engineering
Volume 139, Issue 8
Abstract
The effectiveness and cost-effectiveness of resurfacing maintenance treatments applied to low- and moderate-traffic asphalt pavements in Tennessee were evaluated based on the pavement condition data and costs of identified maintenance projects by single and multiple regression models. The investigated treatments include thin hot-mix asphalt (HMA) overlay, mill and fill, and microsurfacing. Survey results indicated that treatment service life slightly decreased as the traffic volume increased and the service life of thin HMA overlay, mill and fill, and microsurfacing are 11, 10, and 8.5 years, respectively. Linear models were established for both pretreatment and posttreatment pavement performance trends. The treatment effectiveness was calculated as the area bounded by the pretreatment and posttreatment performance curves, the lower performance threshold, and the treatment service life. It was found that traffic level and pretreatment pavement condition are significant for the effectiveness and cost-effectiveness of treatments. The effectiveness and cost-effectiveness decrease with an increase in traffic level and pretreatment pavement condition. The analyses indicated that thin HMA overlay had the highest effectiveness, followed by mill and fill, and microsurfacing; microsurfacing was the most cost-effective treatment due to its low cost.
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Acknowledgments
This study was funded by the Tennessee DOT. Greg Duncan, James M. Maxwell, Mike Doran, and Cherie Fuchs from TDOT pavement maintenance department are especially acknowledged for their assistance. The contents of this paper reflect the views of the authors, who are responsible for the facts and the accuracy of the data presented herein, and do not necessarily reflect the official views or policies of the Tennessee DOT, nor do the contents constitute a standard, specification, or regulation.
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Information
Published In
Journal of Transportation Engineering
Volume 139 • Issue 8 • August 2013
Pages: 797 - 803
Copyright
© 2013 American Society of Civil Engineers.
History
Received: Oct 24, 2012
Accepted: Mar 6, 2013
Published online: Mar 8, 2013
Published in print: Aug 1, 2013
Discussion open until: Aug 8, 2013
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