TRAFFIC SIMULATION FOR EVACUATION PLANNING AT THE OUTBREAK OF TSUNAMI IN LOCAL CITY

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  • FUKUDA Takanori
    徳島大学大学院　先端技術科学教育部　知的力学システム工学専攻
  • OKUSHIMA Masashi
    徳島大学大学院　ソシオテクノサイエンス研究部　エコシステムデザイン部門

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Other Title
  • 地方都市における津波避難計画策定のための自動車利用避難シミュレーションの適用
  • チホウ トシ ニ オケル ツナミ ヒナン ケイカク サクテイ ノ タメ ノ ジドウシャ リヨウ ヒナン シミュレーション ノ テキヨウ

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It is reported that many residents in the local coastal plain area used a private vehicle to evacuate from the tsunami at the earthquake disaster on the east of Japan. Therefore it caused serious traffic congestion and the number of victims by tsunami had increased. In this study, the traffic demand of vehicle for evacuation is estimated at every 5 minute for the day in the target area with the database of the person trip survey. On the other hand, the traffic demand of commercial vehicle for evacuation is estimated with the database of the road traffic census survey. As the result of these estimations, the maximum of the evacuation demand by vehicle can be found in the target area. Moreover, the traffic congestion on the road network of the target area is estimated with the traffic simulator with the maximum evacuation demand by vehicle. The limited number of vehicles for evacuation according to the residential block can be calculated based on the traffic capacity of bottleneck of network. Finally, it can be concluded that the traffic demand by vehicles for evacuation should be restricted appropriately.

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