Flood Adaptation, Built Environment Effects, and Polycentric Planning Support

Keywords

flood adaptation

Abstract

Flood adaptation planning requires integration of hazard mitigation, housing-market analysis, commuting accessibility, and metropolitan development structure. Pre-disaster relocation decisions are shaped by household risk perception, compensation expectations, housing affordability, and access to employment or services. Polycentric development changes these decisions by distributing urban opportunities across multiple centers, while sub-center heterogeneity influences where households can realistically relocate. Interpretable ensemble learning for housing prices provides evidence that built environment effects can be spatially varied and nonlinear, making uniform relocation assumptions unreliable. Commuting matrix estimation and planning-support counterfactuals help evaluate the mobility consequences of relocation. This literature cluster positions flood adaptation as a cross-domain planning problem that connects behavioral disaster models with urban analytics, housing markets, and transport systems. Effective policy design must therefore consider both exposure reduction and post-relocation urban accessibility.

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