In June 2009, the Mobility Authority commissioned an emissions study to evaluate fuel usage and emission differences between 183A and US 183. The study results show drivers using 183A emit significantly less pollutants associated with global warming and unhealthy ground level ozone. Drivers also used less fuel. Learn more about the study and the results by reading the Full Report or Executive Summary or check out our audio slideshow below, a visual study overview with interviews from emissions and environmental experts as well as Mobility Authority staff.
