United States Department of Transportation
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Fragmented or Aligned Climate Action: Assessing Linkages Between Regional and Local Planning Efforts to Meet Transportation Greenhouse Gas Emissions Reduction Targets [Report]
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2022-11-01
[PDF-11.37 MB]
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Corporate Contributors:United States. Department of Transportation. University Transportation Centers (UTC) Program ; United States. Department of Transportation. Office of the Assistant Secretary for Research and Technology ; State of California SB1 2017/2018, Trustees of the California State University Sponsored Programs Administration
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Abstract:Amid the rising climate change concerns, California enacted Senate Bill 375 (SB 375) to tackle transportation greenhouse gas (GHG) emissions. SB 375 requires Metropolitan Planning Organizations (MPOs) to develop a Sustainable Communities Strategy (SCS), a regional transportation and land use vision plan, to reduce GHG emissions. Meanwhile, a local government can develop a Climate Action Plan (CAP), a non-binding, voluntary plan to reduce GHG emissions that may align with the regional SCS. Recent progress reports indicate California is not making sufficient progress to meet SB 375 emissions reduction targets, which raises important questions: (1) Are the transportation and land use strategies and targets in SCS plans reflected in the local plans to build sustainable communities? (2) Does the alignment of regional and local transportation and land use strategies mitigate GHG emissions through vehicle trip reduction? (3) How different are the effects of independent local action and alignment of local and regional actions on vehicle trip reduction? The study results are exhibited in an ArcGIS web application (https://arcg.is/1LPav01) using the Alignment Score metric. The research team developed this metric to quantify the local and regional climate policy alignment. The Alignment Score is a weighted value based on the auto-trip reduction impact of each climate strategy. The web application displays five web maps with the overall Alignment Scores for each of the 25 analyzed cities and the scores for four climate strategy categories (Transportation, Land use, TDM, and Cross-cutting issues).
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