Specifying evacuation return and home-switch stability during short-term disaster recovery using location-based data

Specifying evacuation return and home-switch stability during short-term disaster recovery using location-based data

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Abstract The objectives of this study are: (1) to specify evacuation return here and home-switch stability as two critical milestones of short-term recovery during and in the aftermath of disasters; and (2) to understand the disparities among subpopulations in the duration of these critical recovery milestones.Using privacy-preserving fine-resolution location-based data, we examine evacuation and home move-out rates in Harris County, Texas in the context of the 2017 Hurricane Harvey.For each of the two critical recovery milestones, the results reveal the areas with short- and long-return durations and enable evaluating disparities in evacuation return and home-switch stability patterns.In fact, a shorter duration of critical recovery milestone indicators in flooded areas is not necessarily a positive indication.Shorter evacuation return could be due to barriers to evacuation and shorter home move-out rate return for lower-income residents is associated with living in rental homes.

In addition, skewed and non-uniform recovery patterns for both the evacuation return vibrating table for chocolate and home-switch stability were observed in all subpopulation groups.All return patterns show a two-phase return progress pattern.The findings could inform disaster managers and public officials to perform recovery monitoring and resource allocation in a more proactive, data-driven, and equitable manner.