水害の浸水深と住宅取引価格変化の関係分析 -ハリケーン・サンディの被災地を対象に-  [in Japanese] AN ANALYSIS ON RELATIONSHIP BETWEEN FLOOD DEPTH AND DECLINE IN RESIDENTIAL PROPERTY PRICES AFTER HURRICANE SANDY  [in Japanese]

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Abstract

近年,地球温暖化により大規模水害が頻発すると懸念されており,ソフト防災対策の強化も求められている.ソフト防災対策の成否は,住民が水害危険度を適切に認識しているかに依存するが,その実態は明らかではない.本研究は,住民が経験した水害の被災規模が危険度認識に与える影響を評価するため,詳細な浸水深データが整備されたニューヨーク市の沿岸部のハリケーン・サンディによる被災住宅地を対象に,不動産取引価格と浸水深の関係をヘドニック・アプローチを用いて分析した.その結果,浸水深の増加に伴う不動産取引価格下落が確認され,被害規模に応じた水害危険度認識形成の可能性が示唆された.

 Non-structural measures is increasingly considered critical to secure life and property from flooding. Provided measures would have no effect without residents' well understanding on flood risk; however, residents' awareness level is unknown. Previous research, based on the analysis of real estate property prices, suggest that residents' experiences on flood strengthens their awareness. Such studies, however, have overlooked magnitude of damage. This study analyzes a relationship between flood depth and residential property prices in areas damaged by Hurricane Sandy, where detailed flood depth data are available. Results indicate that the residential property value drops more as flood depth increases, and the level of flood risk awareness corresponds to the magnitude of flood damage experienced.

Journal

  • Journal of Japan Society of Civil Engineers, Ser. B1 (Hydraulic Engineering)

    Journal of Japan Society of Civil Engineers, Ser. B1 (Hydraulic Engineering) 74(4), I_1315-I_1320, 2018

    Japan Society of Civil Engineers

Codes

  • NII Article ID (NAID)
    130007628095
  • Text Lang
    JPN
  • Article Type
    journal article
  • ISSN
    2185-467X
  • Data Source
    IR  J-STAGE 
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