Adaptive optimization of infrastructure maintenance and inspection decisions under performance model uncertainty

Vincent M. Guillaumot, Pablo L. Durango-Cohen, Samer Madanat

    Research output: Contribution to journalArticle

    Abstract

    We present an adaptive optimization model to find joint inspection and maintenance policies for infrastructure facilities under performance model uncertainty. The objective in the formulation is to minimize the total expected social cost of managing facilities over a finite planning horizon. Recent optimization models account for the uncertainty in the selection of facility performance models through an adaptive control approach. In this paper, we relax the assumptions of fixed and error-free inspections. We present a parametric study to analyze the effect of initial performance model uncertainty and bias on the expected total cost of managing a facility. The main observation is that reducing the initial variance in model uncertainty may be more important than reducing the initial bias. Our study also shows that cost savings can result from relaxing the constraint of a fixed inspection schedule.

    Original languageEnglish (US)
    Pages (from-to)133-139
    Number of pages7
    JournalJournal of Infrastructure Systems
    Volume9
    Issue number4
    DOIs
    StatePublished - Dec 1 2003

    Fingerprint

    Inspection
    infrastructure
    uncertainty
    optimization model
    performance
    social costs
    trend
    costs
    savings
    Costs
    cost
    planning
    decision
    inspection
    Uncertainty
    Planning

    Keywords

    • Adaptive systems
    • Infrastructure
    • Inspection
    • Maintenance
    • Optimization
    • Stochastic models

    ASJC Scopus subject areas

    • Transportation
    • Ocean Engineering
    • Water Science and Technology

    Cite this

    Adaptive optimization of infrastructure maintenance and inspection decisions under performance model uncertainty. / Guillaumot, Vincent M.; Durango-Cohen, Pablo L.; Madanat, Samer.

    In: Journal of Infrastructure Systems, Vol. 9, No. 4, 01.12.2003, p. 133-139.

    Research output: Contribution to journalArticle

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