Hazard Exposure Heterophily: A Latent Characteristic in Socio-Spatial Networks Influencing Community Resilience
We present a latent characteristic in socio-spatial networks, hazard-exposure heterophily, to capture the extent to which populations with similar hazard exposure could assist each other through social ties. Heterophily is the tendency of unlike individuals to form social ties. Conversely, populatio...
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Main Authors | , |
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Format | Journal Article |
Language | English |
Published |
03.05.2022
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Subjects | |
Online Access | Get full text |
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Summary: | We present a latent characteristic in socio-spatial networks, hazard-exposure
heterophily, to capture the extent to which populations with similar hazard
exposure could assist each other through social ties. Heterophily is the
tendency of unlike individuals to form social ties. Conversely, populations in
spatial areas with significant hazard exposure similarity, homophily, would
lack sufficient resourcefulness to aid each other to lessen the impact of
hazards. In the context of the Houston metropolitan area, we use Meta's Social
Connectedness data to construct a socio-spatial network in juxtaposition with
flood exposure data from National Flood Hazard Layer to analyze flood hazard
exposure of spatial areas. The results reveal the extent and spatial variation
of hazard-exposure heterophily in the study area. Notably, the results show
that lower-income areas have lower hazard-exposure heterophily possibly caused
by income segregation and the tendency of affordable housing development to be
located in flood zones. Less resourceful social ties due to high
hazard-exposure homophily may inhibit low-income areas from better coping with
hazard impacts and could contribute to their slower recovery. Overall, the
results underscore the significance of characterizing hazard-exposure
heterophily in socio-spatial networks to reveal community vulnerability and
resilience to hazards. |
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DOI: | 10.48550/arxiv.2205.01868 |