United States Department of Transportation
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A Study of the Relationship between Transportation System Resilience (to Climate Hazards) and Social Equity: Planning for Resilience for Underserved Populations and General Populations
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2024-09-30
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[PDF-12.64 MB]
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Alternative Title:Climate Resilience and Social Equity in Transportation: Planning for Underserved Populations and General Populations [Title from Cover]
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Edition:Final Report
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Abstract:Evolving climate disasters and the pandemic are a reminder that lower levels of social equity can leave populations more vulnerable. There is mounting evidence that while resilience is determined by the weakest or most vulnerable links in the (supply) chain, its effects tend to impact the entire (supply) chain and the communities it serves. Ensuring that transportation resilience building is socially equitable is therefore a means of improving system performance for vulnerable and all populations. This research project considers the relationships between transportation system resilience, social equity and transportation system performance and develops policy recommendations to build resilience in a more socially-equitable manner. The project translates negotiated resilience concepts into practical tools for implementation: a self-assessment tool and capability maturity model (CMM) for transportation practitioners. Transportation agencies at the state, regional and local levels may apply these tools to co-develop - with communities and stakeholders - a negotiated definition of resilience that pertains to and addresses tradeoffs between all relevant communities and participating stakeholders. The tools may also be used in continually updating resilience definitions as communities evolve and other factors change, and to measure agency levels of effectiveness with integrating the public into transportation and community resilience building. The second thrust of this study develops analytical procedures to incorporate transportation insecurity measures into climate vulnerability assessments to better identify areas that are socially vulnerable (e.g., cannot meet basic needs) whenever climate vulnerability assessments are conducted. Climate vulnerability assessments are being conducted increasingly to identify areas of high vulnerability and criticality. Such assessments may be conducted with a focus on transportation assets and without explicit identification of areas with the highest transportation insecurities. Analytical capabilities that integrate transportation insecurity measures in climate vulnerability assessments will help ensure that transportation insecurities are identified and addressed in climate resilience building activity to enhance transportation security in all communities. It will also ensure that unique vulnerability factors are addressed in all communities. Practitioners may use these tools collectively to co-define resilience with communities and stakeholders, conduct assessments to determine areas of the highest climate vulnerability and transportation insecurity, and identify and prioritize strategies to build resilience on an ongoing basis.
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