Policies Impact on Vulnerability and the Built Environment Over Time

Authors: Summer Cliff*, Arizona State University
Topics: Hazards and Vulnerability
Keywords: GIS, Hazards, Resilience, Sea Level Rise, Vulnerability, Built Environment
Session Type: Virtual Paper
Day: 4/11/2021
Start / End Time: 11:10 AM / 12:25 PM
Room: Virtual 49
Presentation File: No File Uploaded


Coastal cities face mounting flooding risks due to extreme weather events and sea level rise, and consequently many are looking for ways to mitigate these risks and enhance resilience. This study focuses on these efforts through a case study of Fort Lauderdale, Florida, a city that is highly exposed to coastal flooding. In this analysis, we examine how the policies that Fort Lauderdale has laid out in planning documents to reduce vulnerability to flooding in the built environment relate to spatial patterns of physical and social vulnerability and development. This research will give insight as to how the policies are impacting vulnerability and development. We combine three spatial datasets at two points in time (2015 and 2019). The first is an assessment of policies in Fort Lauderdale’s various city plans that would impact physical vulnerability to flooding in different areas, using the Plan Integration for Resilience Scorecard (PIRS) approach (Malecha et al. 2019). This provides insights into the city’s flood mitigation priorities and vision for development, some of which may not be implemented. The second is Z Trax data from Zillow. This provides high resolution characteristics of the built environment, highlighting physical vulnerabilities and changes to development. Third is a social vulnerability index, the CDC’s SVI. This will tell us where the socially vulnerable populations are. By comparing these data we can see how the three types of spatial data are interconnected, and help cities see how their policies are working overtime.

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