Small-Area Estimations from Survey Data for High-Resolution Maps of Urban Flood Risk Perception and Evacuation Behavior

Rufat, Samuel; Howe, Peter D.

doi:10.1080/24694452.2022.2105685

Cited by 5 publications

(1 citation statement)

References 75 publications

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“…In the Paris metropolitan area of France, more than one million residents are directly exposed to floods and up to five million are indirectly exposed (Thépot et al., 2016). This means that while their home may not be flooded, they might still face power, water, or heating outages and sewer backflow lasting several days during a major flood (Rufat & Howe, 2023). In the case of a 100‐year flood, several neighborhoods including downtown Paris would face up to 3 m of flood water above ground surface level.…”

Section: Introductionmentioning

confidence: 99%

Insights into the complementarity of natural disaster insurance purchases and risk reduction behavior

2023

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While flooding is the costliest natural disaster risk, public‐sector investments provide incomplete protection. Moreover, individuals are in general reluctant to voluntarily invest in measures which limit damage costs from natural disasters. The moral hazard hypothesis argues that insured individuals take fewer other preparedness measures based on their assumption that their losses will be covered anyway. Conversely, the advantageous selection hypothesis argues that individuals view insurance and other risk reduction measures as complements. This study offers a comprehensive assessment of factors related to the separate uptake of natural disaster insurance and the flood‐proofing of homes as well as why people may take both of these measures together. We use data from a survey conducted in Paris, France, in 2018, after several flood events, for a representative sample of 2976 residents facing different levels of flood risk. We perform both main effects regressions and interaction analyses to reveal that home adaptation to flooding is positively associated with comprehensive insurance coverage, which includes financial protection against natural disasters. Furthermore, actual and perceived risks, as well as awareness of official information on flood risk, are found to explain some of the relationship between home adaptation and comprehensive insurance purchase. We suggest several recommendations to policymakers based on these insights which aim to address insurance coverage gaps and the failure to take disaster risk reduction measures. In particular, groups in socially vulnerable situations may benefit from subsidized insurance, low interest loans, and decision aids to implement costly adaptation measures.

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Section: Introductionmentioning

confidence: 99%