Triangle Regional Resilience Partnership Resilience Assessment

The Triangle Regional Resiliency Partnership (TRRP) is a joint project of municipalities and counties in the “Triangle Region” of North Carolina including the Town of Cary, Town of Chapel Hill, City of Durham, City of Raleigh, Durham County, and Orange County. The first project of the Partnership was a resiliency assessment of the area’s assets and risks - in partnership with the University of North Carolina Asheville’s National Environmental Modeling and Analysis Center (NEMAC) and the Triangle J Council of Governments. The assessment focuses on the risks for key assets in each community, including local climate change impacts such as increased frequency of extreme storm events, flooding, drought, and extreme heat, as well as population growth and social vulnerability. Adaptation and resilience strategies were developed from the assessment results to support local governments in the region to address those vulnerabilities and risks.

The TRRP assessment process included the following process - based on the steps outlined in the risk framework from the U.S. Climate Resilience Toolkit:

  1. Explore Threats and Assets - including climate and non-climate and climate-related threats and local assets.
  2. Assess Vulnerability and Risks - to natural assets including agriculture, properties, public services and health, transportation, and water assets.
  3. Investigate Options - to build resilience for the assets that were determined to be most vulnerable and at risk.
  4. Prioritize and Plan - based on developing criteria on which to evaluate the options and strategies. The final criteria selected by the TRRP included: Ability to Increase Regional Resilience; Provides Co-Benefit (Environmental or Other); Socially Responsible (Equity); and Ability to Implement (Financial).
  5. Take Action - involves implementing a plan to build community resilience.This resilience assessment was designed to inform local governments for this last step.

Each of these steps and results are detailed in the report. The impacts of climate and non-climate stressors were studied with GIS mapping and analyses conducted at the census tract level across a regional-scale. The analysis results are presented in “asset - threat pairs” in which the impact of one threat on one asset type is aggregated at the census tract level. The asset-threat pairs discussed in the report include, for example: Properties and Flooding, Water Supply and Water Shortage, Residents and Extreme Heat, Roads and Wildfire and much more. The Technical Report includes a full list of asset-threat pairs assessed, the results of the analysis including risk maps, and the vulnerability and risk rulesets and criteria used for all asset-threat pairs.

The regional partners recognize their transboundary impacts and assets including shared watersheds and water supply, stormwater and transportation infrastructure for example. Resilience Strategies were developed around priority impacts and the most vulnerable assets in the region that also advance the best use of joint planning, action, and communication efforts across jurisdictions. Each strategy addresses vulnerability and risk by either:

    1. reducing exposure
    2. increasing adaptive capacity, or
    3. supporting response and recovery.

Table 16 Priority Options and Strategies lists priority options and strategies to address these threats with an overview of how the strategy meets the resiliency, co-benefit, and social equity prioritization criteria established by the TRRP.



Publication Date: November 2018

Authors or Affiliated Users:

Related Organizations:

  • Triangle Regional Resiliency Partnership
  • UNC Asheville's National Environmental Modeling and Analysis Center (NEMAC)


Resource Category:

Resource Types:

  • Assessment

States Affected:


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