TOTAL ENERGY REQUIREMENTS OF THE BAY AREA RAPID TRANSIT SYSTEM

The paper concerns the energy requirements of the Bay Area Rapid Transit system in five areas: traction energy, station energy, maintenance energy, construction energy, and impact energy. Vehicle traction energy is bounded by a probable lower bound of 3.2 kW-h/car-mile (7.2 MJ/km) and a probable upper bound of 5.5 kW-h/car-mile (12.4 MJ/km). When the station and maintenance energies are added, it is expected that the eventual total operating energy cost will lie between 6 and 7 kW-h/car-mile (13.5 and 15.7 MJ/km). The construction energy is calculated through the use of energy input-output analyses and is approximately equal to the total operation energy over a 50-year projected system life. The impact energy of Bay Area Rapid Transit, that is, the energy associated with other systems built because of the existence of Bay Area Rapid Transit, is discussed. There are not as yet sufficient data available to make an estimate of this energy. The important problem of energy dependence on loading is studied, and it is found that there is a nearly inverse (hyperbolic) relation between energy intensity (kW-h/passenger-mile (joule/kilometer)) and the vehicle loading factor.

• Record URL:
  • http://onlinepubs.trb.org/Onlinepubs/trr/1975/552/552-004.pdf
• Summary URL:
  • https://scholar.google.com/scholar_lookup?title=TOTAL+ENERGY+REQUIREMENTS+OF+THE+BAY+AREA+RAPID+TRANSIT+SYSTEM&author=T.+Healy&author=D.+Dick&publication_year=1975
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/0309024587
• Supplemental Notes:
  • Publication of this paper sponsored by Committee on Rail Systems Planning and Development. 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.
• Authors:
  • Healy, Timothy J
  • Dick, Daniel T
• Conference:
  • 54th Annual Meeting of the Transportation Research Board
  • Location: Washington District of Columbia
  • Date: 1975-1-13 to 1975-1-17
• Publication Date: 1975

Media Info

• Media Type: Print
• Features: Figures; References; Tables;
• Pagination: pp 40-56
• Monograph Title: Rail Transit Development
• Serial:
  • Transportation Research Record
  • Issue Number: 552
  • Publisher: Transportation Research Board
  • ISSN: 0361-1981

Subject/Index Terms

• TRT Terms: Construction; Construction projects; Electric power supply; Energy; Energy consumption; Impacts; Loads; Maintenance practices; Rapid transit; Regenerative braking; Specifications; Traction
• Identifier Terms: San Francisco Bay Area Rapid Transit District
• Uncontrolled Terms: Loading; Operation and maintenance; Requirement
• Subject Areas: Construction; Economics; Energy; Geotechnology; Highways; Maintenance and Preservation; Materials; Planning and Forecasting; Public Transportation; Railroads; Society; Vehicles and Equipment;

Filing Info

• Accession Number: 00130417
• Record Type: Publication
• ISBN: 0309024587
• Files: TRIS, TRB
• Created Date: May 14 1981 12:00AM