TTI's Urban Mobility Report (UMR) is acknowledged as the most authoritative source of
information about traffic congestion and its possible solutions. As policymakers from the
local to national levels devise strategies to reduce greenhouse gas emissions and other
pollutants, the level of interest in the environmental impact of congestion has increased. To
this end, this research effort developed and applied a methodology for determining the
emissions of carbon dioxide (CO2) due to congestion for use in the UMR. The methodology …