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Washington State DOT Study Connects Walkability with VMT and GHG Reductions

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The Washington State Department of Transportation (WSDOT) has released a study in 2011 based on their research testing the effect of sidewalks on travel patterns and the relationship between sidewalk availability and reducing vehicle miles traveled (VMT) and greenhouse gas (GHG) emissions.  The study used newly available sidewalk GIS layers to correlate walking, the built environment, and parking with environmental outcomes.  The results provide early evidence in the potential effectiveness of sidewalks to reduce CO2 and VMT, in addition to a mixed land use pattern, shorter transit travel and wait times, lower transit fares and higher parking costs.  The full report is available at:

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