ECONOMIC AND RELIABILITY TRADE-OFFS IN DUAL-MODE SYSTEMS

Reliability performance of dual-mode systems will influence both capital and operating costs and determine their public acceptability. Further, the reliability and cost balance will probably be the main determinant of which generic type of dual-mode system--integrated or palletized--is eventually selected for final development and implementation. This paper demonstrates those findings by placing reliability in the context of a total-system worth function developed to fit the unique characteristics of the two types of dual-mode systems. In each case, interactions among reliability, availability, service level, safety, capital cost, and operating cost are traced in simplified examples based on hypothetical systems. Because of the extremely high level of reliability required of all rolling stock in the automated phase to secure acceptable system availability in close-headway operation, the capital costs are likely to be high for the palletized system. However, operating economies may offset this sufficiently to make the combination feasible. On the other hand, maintenance costs will be high for the rolling stock in the intergrated system, thus casting doubt on the acceptability of the cost-availability constraint on the user.

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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:
    • Cheaney, Ed S
  • Conference:
  • Publication Date: 1976

Media Info

  • Media Type: Print
  • Features: References;
  • Pagination: pp 107-109
  • Monograph Title: Dual-mode transportation
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    Open Access (libre)

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Filing Info

  • Accession Number: 00149263
  • Record Type: Publication
  • Files: TRIS, TRB, ATRI
  • Created Date: Mar 30 1977 12:00AM