addressing climate change adaptation in regional transportation plans

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Addressing Climate Change Adaptation in Regional Transportation PlansA Guide for California MPOs and RTPAsFigure 10.6 Map of Present and Annual Future Extreme Heat Days under B1 Average GCM Conditions for the SCAG RegionSource: ESRI On-line Background Layers (Roads, Terrain, Places), ESA PWA, 2012.10-14 Cambridge Systematics, Inc.
Addressing Climate Change Adaptation in Regional Transportation PlansA Guide for California MPOs and RTPAs11.0 Module 3: ConductVulnerability and RiskAssessment11.1 THE VALUE OF UNDERSTANDING YOURVULNERABILITIES AND RISKSModule 3 provides guidance to help MPOs and RTPAs of various sizes andcapacities in performing a basic vulnerability and risk assessment of criticaltransportation assets. Together, the recommended steps help agencies derive ameasure of integrated risk for transportation assets potentially impacted byclimate change. If these risks exceed the agency’s tolerance for risk, then theassociated infrastructure should be prioritized for adaptation. The expectedoutcome of this exercise is a shortlist of priority transportation assets which areboth critical and potentially vulnerable (to climate hazards) for consideration inthe subsequent Module 4, “Develop Adaptation Strategies.”This module is formulated to leverage the information developed during the twoprevious modules (Module 2a and Module 2b). At its most basic level, a climatechange vulnerability and risk assessment requires two categories of information:1. Multidimensional information on the transportation infrastructure andfacilities anticipated to be in service during the assessment timeframe. (Thiswill include a substantial selection of current assets, as well as programmedor planned projects.)2. Estimations of potential future climate conditions.The approach suggested by this module describes a sketch-level assessment –performed with systems data (such as data layers downloaded from the CaltransGIS Data Library) and using rules of thumb to consider vulnerability and risk –in order to rapidly screen down the selection of assets that are advanced to thesubsequent adaptation module. Module 4 integrates an approach for morerobust, specific, and temporally-oriented risk assessments leading to thegeneration and prioritization of adaptation strategies, but is likely too time anddata intensive for application to all critical assets.Figure 11.1 provides a step-by-step illustration of the primary elements of thevulnerability and risk assessment.Cambridge Systematics, Inc. 11-1
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State-of-the-Practice Climate Chang
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C A L I F O R N I AADAPTATIONPLANNI
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Adaptation Planning Guide - Advisor
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List of Tables (cont’d.)Table 6.
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Climate Impact RegionsThe APG is or
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APGSTART HERE:PLANNING FOR ADAPTIVE
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What are the designated climate imp
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CA Climate Adaptation Planning Guid
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• Selected Demographic Data. Sele
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Cal-Adapt ProjectionsTable 1. Summa
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Selected Infrastructure and Regiona
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illnesses due to air pollution resu
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Additional Resources• Sea level r
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Cal-Adapt ProjectionsTable 5. Summa
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frequency can harm forests. Large i
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Bay Area RegionCounties: Alameda, C
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the Sacramento and San Joaquin rive
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Table 12. Selected Population Data
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Sea level rise is also expected to
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Additional Resources• Public Heal
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Cal-Adapt ProjectionsTable 13. Summ
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Table 16. Selected Population Data
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As with crops, climate change impac
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Additional Resources• Wildfire Re
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elevations, increased static levee
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The ecosystem functions of the Delt
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Setting and HistoryThe California D
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The islands in the lower Bay-Delta
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Some of the questions that should b
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Southern Central Valley RegionCount
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Biophysical CharacteristicsThe west
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The crops produced are varied and i
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Communities in this region should e
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have the resources to prepare for,
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Additional Resources• Sea Level R
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Timber practices have also had ecos
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Southeast Sierra RegionCounties: Al
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Biophysical CharacteristicsThe sout
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ultimately result in reduced water
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particular concern are populations
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Additional Resources• Sea Level R
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industry around Big Bear. As there
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California Natural Resources Agency
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