Study on various flood countermeasures for human safety and urban function management

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We conducted evacuation experiments using full-scale staircase, passage and car models and studied the critical evacuation conditions. We analyzed underground inundation due to heavy rainfall and drew underground hazard maps based on the evacuation difficulty. Through the analysis, the danger of small underground space was made clear. Also, we developed a method which can predict traffic difficulties caused by urban inundation. In addition, through the wide investigation, we found that underground storage and tunnel systems are very effective to reduce urban inundation.