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[211] Analysis of Questionnaire Survey about the Recovery after Flooding in 2018 in Mabi District of Okayama City

○Michiko Banba¹, Tamiyo Kondo², Ryohei Fujii³ (1. University of Hyogo, 2. Kobe University, 3. Sekisui House)

Keywords:flood, housing recovery, water-proof housing, risk perception, questionnaire survey

Mabi district of Kurashiki City was seriously damaged by flood in 2018. Over 4,000 houses were completely damaged. Questionnaire survey was conducted to study housing recovery behavior of victims in reconstruction of damaged houses after flood. Housing recovery behavior was analyzed whether they applied water-proof countermeasures or not in relation with the knowledge about flood hazard information, acquirement of river improvement construction works and the risk perception towards flood. It was found that only 20% of respondents applied water-proof countermeasures, such as raising level of ground, elevation of foundation in housing reconstruction. It is assumed that one of the reasons is victims risk perception that flood risks will be reduced after the completion of river improvement construction, therefore, they do not need to apply water-proof countermeasures.