COMPARATIVE CONSIDERATION OF HORIZONTAL AND VERTICAL EVACUATION RISKS ALONG THE TIME LINE AROUND THE LEVEE BREACH
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- OKANO Yusuke
- 東京大学大学院 工学系研究科
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- IKEUCHI Koji
- 東京大学大学院 工学系研究科
Bibliographic Information
- Other Title
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- 破堤前後の時間軸に沿った「逃げるリスク」と「逃げないリスク」の比較考慮
Abstract
<p> In Japan, evacuation advisories are simultaneously issued for a wide area when there is a risk of river flooding. But in the U.S., if there is not enough time to evacuate, they will not issue evacuation orders in some cases. This study focused on the middle basin of the Chikugo River and analyzed inundation situations and lead times to determine the evacuation considering the risk of a horizontal evacuation to a evacuation site versus the risk of remaining in a vertical evacuation at home. Then, we examined the appropriateness of making a "recommendation for vertical evacuation" rather than a uniform evacuation advisory. As a result, the risks of horizontal and vertical evacuation vary greatly in each area, and if there is not enough time to evacuate, it is safer to stay home instead of evacuating to a evacuation site. It is necessary to select appropriate evacuation actions for each area.This study shows that vertical evacuation advisory should be issued in some areas instead of uniformly encouraging horizontal evacuation.</p>
Journal
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- Journal of Japan Society of Civil Engineers, Ser. B1 (Hydraulic Engineering)
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Journal of Japan Society of Civil Engineers, Ser. B1 (Hydraulic Engineering) 76 (2), I_505-I_510, 2020
Japan Society of Civil Engineers
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Keywords
Details 詳細情報について
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- CRID
- 1390008754689723392
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- NII Article ID
- 130008122695
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- ISSN
- 2185467X
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- Text Lang
- ja
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- Data Source
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- JaLC
- Crossref
- CiNii Articles
- KAKEN
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- Abstract License Flag
- Disallowed