Reliability-based system-level optimization of bridge maintenance and replacement decisions

Charles Antoine Robelin, Samer Madanat

    Research output: Contribution to journalArticle

    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&Roptimization 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 discretecase 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.

    Original languageEnglish (US)
    Pages (from-to)508-513
    Number of pages6
    JournalTransportation Science
    Volume42
    Issue number4
    DOIs
    StatePublished - Jan 1 2008

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    Computational efficiency
    Planning
    efficiency
    planning

    Keywords

    • Infrastructure management
    • Optimization
    • Reliability

    ASJC Scopus subject areas

    • Transportation

    Cite this

    Reliability-based system-level optimization of bridge maintenance and replacement decisions. / Robelin, Charles Antoine; Madanat, Samer.

    In: Transportation Science, Vol. 42, No. 4, 01.01.2008, p. 508-513.

    Research output: Contribution to journalArticle

    Robelin, Charles Antoine ; Madanat, Samer. / Reliability-based system-level optimization of bridge maintenance and replacement decisions. In: Transportation Science. 2008 ; Vol. 42, No. 4. pp. 508-513.
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