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Application of Semi-Markov Decision Process in Bridge Management

 Application of Semi-Markov Decision Process in Bridge Management
Author(s): ORCID, ,
Presented at IABSE Conference: Structural Engineering: Providing Solutions to Global Challenges, Geneva, Switzerland, September 2015, published in , pp. 1017-1024
DOI: 10.2749/222137815818358204
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The state-of-the-art Bridge Management Systems (BMSs) feature tightly coupled deterioration and preservation optimization model that enable determining the most cost-effective maintenance strategie...
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Bibliographic Details

Author(s): ORCID (Infrastructure Management Consultants, Zurich, Switzerland)
(University of Belgrade, Faculty of Civil Engineering, Belgrade, Serbia)
(University of Belgrade, Faculty of Civil Engineering, Belgrade, Serbia)
Medium: conference paper
Language(s): English
Conference: IABSE Conference: Structural Engineering: Providing Solutions to Global Challenges, Geneva, Switzerland, September 2015
Published in:
Page(s): 1017-1024 Total no. of pages: 8
Page(s): 1017-1024
Total no. of pages: 8
Year: 2015
DOI: 10.2749/222137815818358204
Abstract:

The state-of-the-art Bridge Management Systems (BMSs) feature tightly coupled deterioration and preservation optimization model that enable determining the most cost-effective maintenance strategies at both the project and network levels. In other to improve deterioration model, many authors suggest the application of Weibull distribution for the sojourn time in condition states. Consequently, one has to solve semi-Markov decision process to determine the optimum preservation policy. It can be shown that the long-run optimal policies obtained using semi- Markov model doesn’t differ from those of time homogenous Markov chains for average cost criteria if the expected sojourn times in each condition state are same for both model. However, financial needs differ between the models depending on distribution parameters of sojourn time in each condition state. It is therefore that the estimation of these parameters is crucial for the realistic estimation of the financial needs. In this paper, the semi-Markov decision process is briefly presented and recommendations regarding its practical applications in bridge management are given.

Keywords:
bridge management systems semi-Markov decision process financial needs