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Japan has a high rate of natural disasters compared to other countries, and a large number of people are affected every year. In this study, we performed an evacuation simulation of a flood in Yahiko Village, Niigata Prefecture, with the aim of being able to respond appropriately in the event of future disasters. Specifically, we simulated the evacuation time for people fleeing their homes on foot and by car to the evacuation site, as well as the occurrence of traffic congestion. For the two target areas of Yahiko Village we investigated, the results showed that congestion occurred in Area 1 when the car usage rate reached 30% and in Area 2 when it reached 70%. More specifically, Aria 1 has narrower roads than Aria 2, and there are no detours. Yahiko Village is also a car-based society and an aging society. Some elderly people have physical disabilities. It may be impossible for them to evacuate on foot. To avoid this, Yahiko Village should consider using village buses to evacuate elderly people who are unable to evacuate on foot. This will help avoid traffic congestions.

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Study on the Difference in Evacuation Time Between Pedestrians and Cars and Traffic Congestion During a Disaster in Yahiko Village

  • 会议论文

  • 发表日期：

    2025年

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  • Tatsuyoshi Honma,
  • Eiichi Umehara

摘要

Japan has a high rate of natural disasters compared to other countries, and a large number of people are affected every year. In this study, we performed an evacuation simulation of a flood in Yahiko Village, Niigata Prefecture, with the aim of being able to respond appropriately in the event of future disasters. Specifically, we simulated the evacuation time for people fleeing their homes on foot and by car to the evacuation site, as well as the occurrence of traffic congestion. For the two target areas of Yahiko Village we investigated, the results showed that congestion occurred in Area 1 when the car usage rate reached 30% and in Area 2 when it reached 70%. More specifically, Aria 1 has narrower roads than Aria 2, and there are no detours. Yahiko Village is also a car-based society and an aging society. Some elderly people have physical disabilities. It may be impossible for them to evacuate on foot. To avoid this, Yahiko Village should consider using village buses to evacuate elderly people who are unable to evacuate on foot. This will help avoid traffic congestions.