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Discussion of Multi-Objective Optimization in Decision Making in Transport Infrastructure Asset Management

This discussion explores the use of multi-objective optimization in decision making for managing transport infrastructure assets. It covers road development in China, infrastructure asset management, decision making strategies, and the capabilities of multi-objective optimization.

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Discussion of Multi-Objective Optimization in Decision Making in Transport Infrastructure Asset Management

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  1. DISCUSSION OF MULTI-OBJECTIVE OPTIMIZATION IN DECISION MAKING IN TRANSPORT INFRASTRUCTURE ASSEST MANAGEMENT Lin CHEN Chang’an University, Xi’an, China July 12, 2017

  2. About me Chang’an University China University of Auckland New Zealand

  3. About me University of Pretoria South Africa

  4. Content • 1. Road Development in China • 2. Infrastructure Asset Management • 3. Decision Making • 4. Multi-Objective Optimization

  5. 1. Road Development in China History: Management department Laws Lower classes of highways Medium and high classes of highways 1949: 1980s:

  6. 1. Road Development in China Expressway Development in China

  7. 1. Road Development in China 4.69 million km Main Road Networks in China

  8. 2. Transport Infrastructure Asset Management What & When?

  9. 2. Transport Infrastructure Asset Management Transport Infrastructure Asset Management efficiently manage a road network in order to achieve goals and requirements Whattreatments should be used? Whenshould I apply the treatment? How to implement those treatment? Whatare the outcomes of my management?

  10. 3. Decision Making Decision Making (DM) attempts to identify the proper strategies for an infrastructure asset network Strategies

  11. 3. Decision Making Decision Making (DM) attempts to identify the proper strategies for an infrastructure asset network

  12. 3. Decision Making Decision Making (DM) attempts to identify the proper strategies for an infrastructure asset network Cost

  13. 3. Decision Making Decision Making (DM) attempts to identify the proper strategies for an infrastructure asset network Condition

  14. 3. Decision Making Decision Making (DM) attempts to identify the proper strategies for an infrastructure asset network ? Condition Cost

  15. 3. Decision Making Decision Making (DM) • A wide range of considerations • A large number of segments and strategies • Conflicting goals • A number of requirements • Subjectivities Various variables Powerful & cheap computingpower Multiple objectives Multiple constraints No expert experience needed Multi-Objective Optimisation (MOO)

  16. 4. Multi-Objective Optimization Multi-Objective Optimisation (MOO) describes Multi-Objective Decision Making more practically and rational, especially when objectives cannot be reasonably aggregated into a single objective.

  17. 4. Multi-Objective Optimization Multi-Objective Optimisation (MOO) - Abilities Pareto solutions: Best possible solutions

  18. 4. Multi-Objective Optimization Multi-Objective Optimisation (MOO) - Abilities Best achievable outcomes

  19. 4. Multi-Objective Optimization Multi-Objective Optimisation (MOO) - Abilities Outcome relationship Outcome trade-offs

  20. 4. Multi-Objective Optimization Multi-Objective Optimisation (MOO) - Abilities Outcome relationship Outcome trade-offs

  21. 4. Multi-Objective Optimization MOO has the potentials to help with decision making in TIAM Whatare the applicable methods? Whichone is suitable for my problem? How to implement it?

  22. 4. Multi-Objective Optimization Exact method Case Study Heuristic

  23. 4. Multi-Objective Optimization Comparison of MOO methods

  24. 4. Multi-Objective Optimization Solution Quality

  25. 4. Multi-Objective Optimization Solution Distribution Good distribution Poor distribution

  26. 4. Multi-Objective Optimization Comparison of MOO methods

  27. Thank you!

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