Urban form and structure explain variability in spatial inequality of property flood risk among US counties

Urban form and structure explain variability in spatial inequality of property flood risk among US counties

Understanding the relationship between urban form and structure and spatial inequality of property flood risk has been a longstanding challenge in urban planning and emergency management. Here we explore eight urban form and structure features to explain variability in spatial inequality of property...

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Bibliographic Details
Published in:Communications earth & environment 2024-12, Vol.5 (1), p.172-12
Main Authors: Ma, Junwei, Mostafavi, Ali
Format: Article
Language:eng
Subjects:
Coasts
Density
Economic analysis
Economic conditions
Emergency management
Emergency preparedness
Environmental risk
Floods
Inequality
Regression analysis
Regression models
Segregation
Urban areas
Urban planning
Urbanization
Variability
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Summary:Understanding the relationship between urban form and structure and spatial inequality of property flood risk has been a longstanding challenge in urban planning and emergency management. Here we explore eight urban form and structure features to explain variability in spatial inequality of property flood risk among 2567 US counties. Using datasets related to human mobility and facility distribution, we identify notable variation in spatial inequality of property flood risk, particularly in coastline and metropolitan counties. The results reveal variations in spatial inequality of property flood risk can be explained based on principal components of development density, economic activity, and centrality and segregation. The classification and regression tree model further demonstrates how these principal components interact and form pathways that explain spatial inequality of property flood risk. The findings underscore the critical role of urban planning in mitigating flood risk inequality, offering valuable insights for crafting integrated strategies as urbanization progresses.Coastline and metropolitan counties in the US show large spatial inequality of property flood risk linked to urban density and growth, economy, and racial and income segregation according to an analysis of flood risk and socio-economic data.
ISSN:2662-4435