• Title/Summary/Keyword: Probability of Street Blockade

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A Study on Probability of Street Blockade at a Large-scale Disaster in a Historic Preservation Area

  • Mishima, Nobuo;Ishimaru, Daisuke;Oh, Yong-Sun;Park, Sun Gyu
    • Proceedings of the Korea Contents Association Conference
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    • 2013.05a
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    • pp.251-252
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    • 2013
  • Most of the Historic Preservation Areas are very vulnerable to disasters. The aim of this study is to build probability of street blockade for evacuation routes planning from each house to an evacuation place at a large-scale disaster in such a historic preservation area. The study area is Hamanaka Machi Happongi Shuku in Kashima city, Saga Prefecture, which has been designated as a preservation district of traditional buildings. To achieve this aim, we referred to the formula for probability of street blockade for normal city area made by Tokyo Fire Agency. We revised it, considering the width of street under 4 m, structure of houses along the street, and the distance from the house to main street with the width over 4 m. Then, we applied the revised formula to the study area.

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A temporary evacuation area like open space analysis for disaster prevention town considering probability of street blockade-

  • Hidaka, Yutaro;Mishima, Nobuo;Wakuya, Hiroshi;Hayashida, Yukuo;Okazaki, Yasuhisa;Kitagawa, Keiko;Park, Sun-gyu;Oh, Yong-sun
    • Proceedings of the Korea Contents Association Conference
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    • 2016.05a
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    • pp.239-240
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    • 2016
  • Traditional town with wooden houses like Japanese historic local town is vulnerable to disaster. Wooden houses crowed in this study area, there is no gap between buildings and buildings. When disaster occurs, they can not use evacuation routes based on the value of probability of rubble flow. Disaster prevention design of traditional town using spatial information for residents is a modern idea in the field of disaster prevention study. Therefore, it is basically important and effective to create information, especially on the current situation such as dangerousness of the area. Here, we report on a disaster prevention design regarding probability of street blockade and probability of rubble flow at a large earthquake directly under our study area. In this study, we explain about necessity of temporary evacuation areas like open space. As a result, we found some ideas to secure evacuation routes from traditional houses to designated refuge places using temporary evacuation areas.

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