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Suggested Citation:"Chapter 8 - Conclusion." National Academies of Sciences, Engineering, and Medicine. 2023. Developing a Highway Framework to Conduct an All-Hazards Risk and Resilience Analysis. Washington, DC: The National Academies Press. doi: 10.17226/26924.
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Page 30

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30 C H A P T E R 8 This research validated the need for the development of a framework and tools to help trans- portation agencies conduct quantitative risk and resilience assessments for their transportation infrastructure and meet the requirements of multiple federal regulations. In addition, it identi- fied the gaps and successes in the state of practice to help with the development of products that will be easily incorporated into current practices. While this research roadmap addresses highway assets explicitly, the research team recognizes that the risk and resilience framework described in the roadmap can be expanded to address a multimodal system. Such a framework would have to take on a system-of-systems approach, addressing the complexity of many interdependent systems as well as the impact of interactive and multiplicate threats, both natural and anthropogenic. Graph theory, topological measures, and travel demand modeling, as described by D’Ayala et al. (2021) and Markolf’s “Pathways of Disruption” (Markolf et al. n.d.) offer some strategies toward a more system-wide approach for risk and resilience assessment. The work completed under NCHRP Project 23-09 provides the necessary steps (framework, roadmap, and RPSs) to guide the research community to develop a Highway Risk and Resilience (R&R) Manual and tools to conduct quantitative risk and resilience assessments. Conclusion

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Transportation agencies currently have to meet federal regulations that require the incorporation of risk and resilience into their activities, including MAP-21, FHWA 5520, and the Infrastructure Investment and Jobs Act. However, guidelines for analytical risk assessment methods to support risk-based processes is lagging.

The TRB National Cooperative Highway Research Program's NCHRP Research Report 1014: Developing a Highway Framework to Conduct an All-Hazards Risk and Resilience Analysis presents a research roadmap to develop a comprehensive manual, tools, training, and implementation guidelines for quantitative risk and resilience assessment that satisfies new federal requirements.

Supplemental to the report are an implementation and communications plan, a flyer summarizing the project, and a PowerPoint presentation.

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