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:
- Find a library where document is available. Order URL: http://worldcat.org/issn/10939687
Authors:
- Pasupathy, Raghu
- Labi, Samuel A
- Sinha, Kumares C
Publication Date: 2007-8

Language

English

Media Info

Media Type: Print
Features: Appendices; Figures; References;
Pagination: pp 389-399
Serial:
- Computer-Aided Civil and Infrastructure Engineering
- Volume: 22
- Issue Number: 6
- Publisher: Blackwell Publishing
- ISSN: 1093-9687
- Serial URL: http://onlinelibrary.wiley.com/journal/10.1111/(ISSN)1467-8667

Subject/Index Terms

TRT Terms: Bridge engineering; Construction projects; Infrastructure; Optimization; Pavement distress; Project management; Reconstruction; Stochastic processes; Structural deterioration and defects; Transportation departments
Uncontrolled Terms: Cost savings
Subject Areas: Administration and Management; Bridges and other structures; Construction; Data and Information Technology; Design; Highways; I24: Design of Bridges and Retaining Walls;

Filing Info

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