Life-Cycle Evaluation of Flexible Pavement Preventive Maintenance
Publication: Journal of Transportation Engineering
Volume 131, Issue 10
Abstract
This study investigates the cost effectiveness of various levels of life-cycle preventive maintenance (PM) for three asphaltic concrete pavement functional class families. For each family, the effectiveness and cost associated with each of several alternative life-cycle PM strategies were estimated. For each strategy, effectiveness was estimated as the increase in service life relative to a base-case strategy, and the cost was estimated in terms of agency and user costs associated with the treatments comprising that strategy. Using the estimated costs and effectiveness, statistical models were developed to describe the relationship between life-cycle PM effort and its efficacy in extending the pavement life, per unit cost. It is shown that increasing PM is generally associated with increasing cost effectiveness (but only up to a certain turning point beyond which cost effectiveness decreases). It was determined that the maximum cost effectiveness and the corresponding level of annualized PM are influenced by the pavement functional class and cost components considered. A general methodology is hereby provided for pavement managers to estimate the expected changes in pavement service life arising from changes in PM expenditure.
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Acknowledgments
This work was supported by the Joint Transportation Research Program administered by the Indiana Department of Transportation and Purdue University. William Flora, Mike Yamin, David Holtz, Mark Burton, Dennis Belter, and Krystal Cornett of INDOT, and John Weaver of Deighton Associates Limited are especially acknowledged for their assistance. The contents of this paper reflect the views of the writers, 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 Federal Highway Administration and the Indiana Department of Transportation, nor do the contents constitute a standard, specification, or regulation.
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Information & Authors
Information
Published In
Journal of Transportation Engineering
Volume 131 • Issue 10 • October 2005
Pages: 744 - 751
Copyright
© 2005 ASCE.
History
Received: Apr 2, 2003
Accepted: Jun 29, 2004
Published online: Oct 1, 2005
Published in print: Oct 2005
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