Reliability-Based System-Level Optimization of Bridge Maintenance and Replacement Decisions

Charles-Antoine Robelin () and Samer M. Madanat ()
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Charles-Antoine Robelin: Amadeus s.a.s., Sophia Antipolis 06902, France
Samer M. Madanat: Department of Civil and Environmental Engineering, University of California, Berkeley, Berkeley, California 94720

Transportation Science, 2008, vol. 42, issue 4, 508-513

Abstract: This paper addresses the problem of optimizing bridge maintenance and replacement (M&R) decisions for a heterogeneous system of facilities. The objective is to determine optimal M&R policies for each facility over a finite planning horizon based on the knowledge of the current facilities conditions and on the prediction of future conditions. The system-level problem is based on the results of an M&R optimization problem for each facility. The results of the facility-level optimization are incorporated in a reliability-based, bottom-up, system-level formulation that provides recommendations for each individual facility. We derive sufficient conditions for optimality and prove the result for the continuous case. A parametric study shows that the results obtained in the discrete-case implementation of the solution are valid approximations of the continuous case results. The computational efficiency of the system-level solution makes the formulation suitable for systems of realistic sizes.

Keywords: reliability; optimization; infrastructure management (search for similar items in EconPapers)
Date: 2008
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Citations: View citations in EconPapers (5)

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Persistent link: https://EconPapers.repec.org/RePEc:inm:ortrsc:v:42:y:2008:i:4:p:508-513

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