A Method for Prioritization of Vulnerability Assessment of Technical Transportation Structures in Natural Disasters

9. One of the lessons drawn from past topics mentioned in the previous pages is that: There is no sufficient tool or model for decision making in road infrastructures rehabilitation projects to compare and prioritize different structures in road transportation system.

10. In August of 2007, Interstate 35 in Minnesota collapsed during rush hour killing 13 and injuring 145people. Passenger vehicles carrying families, commercial trucks carrying goods, and even a school bus, were all on the bridge when it collapsed into the Mississippi River. Although the number of casualties for a bridge collapse of this magnitude could have been much worse, the costs associated with the bridge collapse were still enormous. The Minnesota Department of Transportation (MNDOT) had to compensate the victims for their injuries or loss of life, pay for the debris to be cleared, set up detours, and replace the bridge. The Minnesota bridge collapse caused the government to pay almost $400 million in replacement costs, $38 million for victims’ compensation, and an estimated $400,000 per day for the local economy due to rerouting, travel delays, and lost mobility. The bridge collapse and all of the associated costs could have been avoided with a better maintenance prioritization and allocation of funds.

15. Genetic Algorithm Other Algorithms Speed Human work Applicability Performance Slow * Generally fast Minimal Long and exhaustive General There are problems that cannot be solved analytically Excellent Depends * Not necessary!

16. 1- The hazard is earthquake 2- Road infrastructures include: bridges , buildings , tunnels and walls 3- Seismic vulnerability qualitative assessment is based on RVS (Rapid Visual Screening) method 4- Weight evaluation of indexes is based on experts experiences and judgment and also historical data from past earthquakes in Iran 5- Decision making tool is MCDM model 6- Artificial intelligence ( Genetic Algorithm or other methods) is used for planning and prioritizing

25. Vulnerability Importance Criteria Assessment based on Infrastructure Performance

30. The tools and methods developed in this research will hopefully help lead to a safer, more effective infrastructure rehabilitation system: 1- Qualitative Seismic Vulnerability Assessment procedure ( Rapid Visual Screening Checklists) for tunnels and retaining walls 2- Importance criteria assessment methods for critical road transportation infrastructures include bridges, tunnels, buildings, retaining walls 3- Financial Planning for rehabilitations of infrastructures 4- To develop a Multi Criteria Decision Making model for seismic rehabilitation of road infrastructures based on Artificial Intelligence approach (Genetic Algorithm for decision making purposes) 5- Prioritization of rehabilitation projects

31. Conclusion: Evolution

32. Thank You for Your Attention