This report evaluates potential reductions in pollutant emissions and fuel consumption that could be achieved through greater adoption of alternative fuels including CNG, LNG and biodiesel, and advanced vehicle technologies such as hybrid electric drive systems in the national transit bus fleet. According with the analysis results, ongoing and planned procurements by transit agencies of new technology diesel, alternative fuel and hybrid-electric buses will result in reductions in emissions of CO, NMHC, NOx and PM with modest increases in CO2 emissions and fuel consumption over the next 3 years. Increased adoption above and beyond that occurring through the transit agencies own initiatives can further capitalize emissions and fuel economy benefits of new technologies. Hypothetical scenarios in which new clean-diesel (post-2007 model year), CNG, diesel-electric hybrid, gasoline electric hybrid and biodiesel fuel use were each individually increased to 15% of the U.S. fleet were considered. Potential changes in annual emissions and fuel consumption are presented. Benefits from the different technologies are discussed. Diesel-electric hybrid buses appear to offer the best overall environmental benefits and is the only technology to result in a reduction in fossil fuel consumption. The relative emissions and efficiency impacts benefits of the various technologies are presented for comparison


    Access

    Access via TIB

    Check availability in my library


    Export, share and cite



    Title :

    Environmental Benefits of Alternative Fuels and Advanced Technology in Transit


    Publication date :

    2007


    Size :

    63 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English




    Advanced alternative fuels technology

    Graves, Ronald L. | TIBKAT | 1993



    Air Quality Benefits of alternative fuels

    Office of Mobile Sources / Office of Air and Radiation / Environmental Protection Agency | TIBKAT | 1987


    Alternative fuels and advanced technology vehicles; EnV'99

    British Library Conference Proceedings | 1999