COMPARISON OF ENERGY AND POLLUTION CHARACTERISTICS OF PROPULSION SYSTEMS OF DUAL-MODE TRANSIT VEHICLES AND THE AUTOMOBILE

A typical dual-mode trip was selected on which to base a comparison of energy consumption, energy cost, and pollution levels associated with the following vehicles and vehicle-transporter combinations: all electric bus on- and off-guideway, all electric bus using electric transporter on-guideway, diesel bus, diesel bus using electric transporter on-guideway, private automobile using conventional streets and freeways, private automobile on electric transporter on-guideway, and gasoline bus on- and off-guideway. The energy consumed in terms of raw energy sources does not significantly among the transit methods evaluated, since the overall system energy conversion efficiencies for these processes are approximately equal. Electrically powered transit methods operate at a lower cost and at much lower pollution levels than the petroleum-fueled internal combustion engine methods. Generating plant emissions are relatively easily controlled, and a lower cost fuel can be used in addition to having flexibility of fuel selection. Trip speeds were 12 mph (19.3 km/h) average off-guideway in the suburbs; 7 mph (11.3 km/h) average downtown; and 50 mph (80.5 km/h) cruise on the guideway.

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    • This paper appears in Dual Mode Transportation, which is a publication containing the proceedings of a conference conducted by the Transportation Research Board, May 29-31, 1974. Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved
  • Corporate Authors:

    Transportation Research Board (TRB)

    Washington, DC   
  • Authors:
    • Donlon, R H
    • Saunders, L L
  • Conference:
  • Publication Date: 1976

Media Info

  • Media Type: Print
  • Features: Tables;
  • Pagination: pp 135-136
  • Monograph Title: Dual-mode transportation
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    Open Access (libre)

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  • Accession Number: 00149275
  • Record Type: Publication
  • Files: TRIS, TRB, ATRI
  • Created Date: Mar 30 1977 12:00AM