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Mass Transit: Use of Alternative Fuels in Transit Buses

RCED-00-18 Published: Dec 14, 1999. Publicly Released: Dec 14, 1999.
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Highlights

Pursuant to a legislative requirement, GAO reported on the: (1) status of the development and use of alternative fuel technologies in transit buses, particularly the use of compressed natural gas (CNG) as a fuel; (2) air quality benefits of such technologies; (3) costs incurred by transit operators to use CNG buses, as well as other alternative fuels, compared with the costs to use diesel buses; and (4) primary incentives and disincentives for using these technologies.

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Transportation
Air pollution controlAir qualityAlternative fuelsCost analysisDiesel enginesEnvironmental policiesEquipment maintenanceInternal combustion enginesMass transitMotor vehicle pollution controlNatural gas vehiclesTransportation researchUrban transportationSpark ignition engines