Multi-year maintenance planning framework using multi-attribute utility theory and genetic algorithms

Zaharah Allah Bukhsh*, Irina Stipanovic, Andre G. Doree

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

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Abstract

This paper introduces a comprehensive framework for the development of optimal multi-year maintenance plans for a large number of bridges. A maintenance plan is said to be optimal when, within the given budget, a maximum number of bridges can be maintained in the best possible year, achieving maximum performance with minimum socio-economic impact. The framework incorporates heuristic rules, multi-attribute utility theory, discrete Markov chain process, and genetic algorithms to find an optimal balance between limited budgets and performance requirements. The applicability of the proposed framework is illustrated on an extensive case study of highway bridges. The framework enables asset owners to execute various planning scenarios under different budget and performance requirements, where each resulting plan is optimal. The focus of this study has mainly been on highway bridges, however the framework is general and can be applied to any other infrastructure asset type.

Original languageEnglish
Article number3
JournalEuropean transport research review
Volume12
Issue number1
DOIs
Publication statusPublished - 1 Dec 2020

Keywords

  • Bridges
  • Genetic algorithms
  • Maintenance planning
  • Markov decision processes
  • Multi-attribute
  • Multi-objectives
  • Optimization
  • Utility function

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