Climate Change Adaptation Planning: Risk Assessment for Airports (2015) / Chapter Skim
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P A R T I I I The User Guide
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39 7.1 Role of the ACROS Tool in Inventory, Risk Assessment, and Prioritizing Adaptation Options The ACROS tool is designed to guide airport staff through a streamlined process to identify current and future climate risk and evaluate and prioritize potential adaptation options while bypassing the need to develop and examine climate models. To develop adaptation strategies without the tool, an airport would need to conduct its own literature review on adaptation strategies, search for available climate data, and analyze asset-relevant adaptation options.
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40 Climate Change Adaptation Planning: Risk Assessment for Airports important. With stakeholder input gathered, the user will be asked to provide information specific to that airport's assets in Step 3.
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The ACROS Tool User Guide 41 7.4.2 Welcome Screen The purpose of the first screen is to present introductory information about the tool (Figure 7-3)
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42 Climate Change Adaptation Planning: Risk Assessment for Airports Note: This tool is designed to view one airport at a time. For those users responsible for multiple airports, the tool must be used in separate sessions.
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The ACROS Tool User Guide 43 selected for this project, so even a "low" value for a vector included in ACROS contrasts sharply with vectors that were excluded from this tool, like wind and fog. Wind and fog are critical to airport operations, but unlike even the "low" confidence level vectors, current models for these two climate stressors are not yet mature enough to be included in ACROS.
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44 Climate Change Adaptation Planning: Risk Assessment for Airports 7.4.5 Climate Projections (days/year) Use the menu along the left side of the Climate information section (shown in Figure 7-6)
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Figure 7-6. Airport-specific and regional climate projections.
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46 Climate Change Adaptation Planning: Risk Assessment for Airports Figure 7-7. Airport campus is within the Special Flood Hazard Area and is also affected by nuisance tidal flooding and/or permanent inundation.
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The ACROS Tool User Guide 47 More coastal airports will have values for the Sea Level Rise–BFE vector than for the Sea Level Rise vector. Sea Level Rise–BFEs represent the 1% annual chance flood elevation -- a relatively extreme and infrequent event as compared to nuisance flooding.
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48 Climate Change Adaptation Planning: Risk Assessment for Airports 7.4.9 Defining Criticality The purpose of this section is to determine asset and operation criticality, which is defined in the instructions below. After completing the Assets section above, use the left side panel to navigate to the Criticality section (Figure 7-11)
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The ACROS Tool User Guide 49 Figure 7-12. (Continued)
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Figure 7-14. Vulnerability information screen.
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The ACROS Tool User Guide 51 The right panel shows a key for the Screening information. Each asset or operation is scored using the three-color relative risk scheme shown in Figure 7-17.
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Figure 7-18. Risk screening overview -- desktop view.
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The ACROS Tool User Guide 53 The report sections will be displayed on screen. Simultaneously, the tool will generate a Word (.docx)
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54 Climate Change Adaptation Planning: Risk Assessment for Airports RISK SERVICE: ASSET: Utilities Water Distribution Systems Risk Climate Vectors Impacts Adaptation Options Dry Days Failure of Underground Utilities From Expansive Soils • Modify Fill Material • Replace Duct Banks Utilities to Alleviate Expansion Dry Days Less Water Main Flushing • Continue Monitoring and Disinfection of Water Supply System Dry Days Reduced Water Availability Due to Drought • Utilize Water Conserving Fixtures and Landscaping Figure 7-21. Excerpt from risk report.
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The ACROS Tool User Guide 55 • Rate of change: How large a difference between changes is projected in 2030 and 2060? Does the change appear to be linear (a straight-line increase from baseline)
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56 Climate Change Adaptation Planning: Risk Assessment for Airports • Note changes in vectors measuring opposite conditions. For example, nationally, many locations will see increases in Dry Days as well as Heavy Rain 1-Day and Heavy Rain 5-Day events.
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