Modeling infrastructure systems' interdependencies for catastrophes

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When a large disaster occurs, congestion in affected areas results in loss of efficiency and often creates an excessive load to the network due to traffic primarily out of the hit area but also into or within the hit area (e.g. rescue vehicles, supply of emergency goods, reverse trips to pick-up goods or family members) Therefore, better utilization of the available transportation network capacity during disasters is essential to manage traffic and lead people to safety. An initial study was done on the road link importance to the Kansai area, especially for bridges near the coastal area. An agent-based model was developed and different capacities of the bridges were tested for normal cars. As the time spent on the research was not focus on the software design, it took a longer time than expected for other analysis. Therefore the humanitarian logistics carried out by response team was not done. Future research will be related to the simulation of response team.