NCHRP Report 809: Environmental Performance Measures for State Departments of Transportation

The High Street team gathered nearly 200 environmentally focused measures after extensive research and discussions with transportation practitioners. All measures were evaluated against a set of six criteria to identify those with the most promise. The measures spanned five major focus areas that included Air quality, Energy and climate, Materials recycling, Stormwater, Wildlife and ecosystems.
Each of the report’s recommended measures was tested with real data from state DOTs across the country, and further evaluated against four additional criteria. The result is a suite of core environmental performance measures designed to help state DOTs better understand and communicate the impacts of transportation on the environment.