United States Department of Transportation
i
Assessing Criticality in Transportation Adaptation Planning
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2014-05-25
[PDF-948.36 KB]
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Abstract:Before initiating a climate change vulnerability assessment, transportation agencies need to decide which assets they wish to evaluate. Identifying the relevant assets for a vulnerability study and determining which characteristics of these assets to examine can help agencies narrow the scope of the study, making it more manageable and affordable while allowing more in-depth assessment of the selected group of assets. One way to narrow the range of assets to be evaluated is to conduct a criticality assessment, which involves identifying the most critical elements of the transportation system for analysis, using quantitative or qualitative criteria. A criticality assessment provides a structured way to focus on assets that are most important for the functioning of the transportation system. This memorandum discusses common challenges associated with assessing criticality, options for defining criticality and identifying scope, and the process of applying criteria and ranking assets. It uses examples from the FHWA pilots and the Gulf Coast 2 study (see text box above) to illustrate a variety of approaches that have been used for assessing criticality. The Appendix lists criticality criteria developed under the Gulf Coast Study, Phase 2, along with brief explanations for why each criterion was chosen.
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