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TR N EW S 28 8 SE PT EM BE R– O CT O BE R 20 13 4 The author is Professor, School of Civil and Environmental Engineering, Georgia Institute of Technology, Atlanta. Sustainable development and environmentalsustainability -- although not new concepts -- have been elevated in recent decades into the laws, policies, and regulations that shape decision making about transportation and land use.
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TR N EW S 288 SEPTEM BER–O CTO BER 2013 5 modeling and evaluating sustainable development share the following characteristics: u An unambiguous definition of sustainable development and a clearly defined terminology; u The potential for interdisciplinary approaches; u The ability to address long-term intergenerational concerns; u The capacity for managing uncertainty; u The ability to address local–global interactions -- including, for example, urban–rural issues; u The ability to accommodate stakeholder participation; and u The ability to accommodate process-based and outcome-based measures for sustainable development. Several modeling approaches have been applied to evaluate sustainability in development, including macroeconometric models, computable general equilibrium models, optimization models, system dynamics models, multiagent simulation models, Bayesian network models, integrated dynamic models, multiobjective models, and resource footprints (4–6)
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TR N EW S 28 8 SE PT EM BE R– O CT O BE R 20 13 6 Footprinting Chicago and Atlanta The sustainability footprint was used to evaluate the metropolitan highway networks of the Chicago, Illinois, and Atlanta, Georgia, regions in the decade of the 1990s, with data from the Texas A&M Transportation Institute's Urban Mobility Report. Table 1 (above)
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TR N EW S 288 SEPTEM BER–O CTO BER 2013 7 The second step was to define performance measures for each goal and analyze and quantify the impacts of each plan. The measures were normalized to construct a composite sustainability index from the criteria, weighted to reflect the relative importance to the decision maker.
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TR N EW S 28 8 SE PT EM BE R– O CT O BE R 20 13 8 States' Findings The results of the SWOT evaluation showed that the participating state DOTs identified two internal factors as their strongest: u Communicating and collaborating with external stakeholders, and u Demonstrating a sustainability ethic. The DOTs judged internal promotion of a sustainability culture, however, as the weakest factor.
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TR N EW S 288 SEPTEM BER–O CTO BER 2013 9 analytical and data resources for addressing quality of life and other sustainable development considerations in transportation decision making.2 u NCHRP Report 708, Guidebook for Sustainability Performance Measurement in Transportation Agencies, describes performance measures and data to address quality of life and other elements of sustainable development.3 In addition, several initiatives in research and practice can serve as resources for addressing quality-of-life issues in decision making, including findings and applications on adapting to climate change (16–18) ; on infrastructure resiliency (19)
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