Mass Transit: Use of Alternative Fuels in Transit Buses.

摘要

This report focuses primarily on the use of compressed natural gas (CNG) because the vast majority of alternative fuel buses are using this fuel. As agreed with your offices, this report addresses (1) the status of the development and use of alternative fuel technologies in transit buses, particularly the use of CNG as a fuel; (2) the air quality benefits of such technologies; (3) the 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) the primary incentives and disincentives for using these technologies. Appendix I, which describes the scope and methodology of our review, includes a list of the 12 transit operators we contacted, their locations, and the types of fuel they use. Appendix II provides a list of all of the other parties we contacted. Appendixes III through X provide detailed information on the status and costs of the alternative fuel technologies other than CNG that can be used in transit buses.