Optimal Reconstruction Periods for Stochastically Deteriorating Infrastructures

In this paper, the authors address the problem of identifying the optimal period between reconstructions (termed reconstruction periods) for an infrastructure system whose performance deteriorates stochastically over time. Performance may refer to the physical condition, such as pavement or bridge condition. It is first demonstrated that for any stochastic deterioration process and reconstruction period, the long-term cost-effectiveness, defined as the ratio of the total non-monetary benefit to the total monetary cost across several reconstruction periods, is simply the ratio of the expected benefit to the expected cost up to the first reconstruction, assuming that reconstructions bring the facility back to the new state. The authors then select 4 popular mathematical forms of facility performance and present methods to determine the optimal reconstruction periods. The reconstruction cost is assumed to satisfy a certain specified structure.

  • Availability:
  • Authors:
    • Pasupathy, Raghu
    • Labi, Samuel A
    • Sinha, Kumares C
  • Publication Date: 2007-8

Language

  • English

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 01054130
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Jul 21 2007 11:56PM