A man-computer interactive graphic system, developed at the University of Washington, is applied to a series of experiments designed to identify the characteristics of high-performance bus rapid transit systems for CBD-bound riders who reside in ageneralized suburban corridor. The solution spaces of each of 12 problem cases, derived from the combination of several trip demand densities, highway network characteristics, and trip-making behaviors, are explored in an interactive graphic search process. The purpose of the search is to identify optimal solutions using two operator objectives, one maximizing profit and the other maximizing patronage within a given subsidy constraint. Furthermore, the search is aimed at identifying solutions that cannot be dominated in terms of any combination of patronage and profit, thus forming an envelope in the patronage versus profit-deficit space. From a comparison of these envelopes some general relationships between bus rapid transit operating characteristics and external conditions are developed. Similarly, relationships between system characteristcis and external conditions are derived from a comparison of the penoptimal solutions. Finally it is shown that the penoptimal solutions may violate some of the environmental, social, or political constraints commonly imposed on public transit systems, and it is also demonstrated that, by complying with such constraints, the operator may incur significant losses. /Author/

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    • This article appeared in Highway Research Record Application of Interactive Graphics to Transportation Systems Planning. 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:
    • Rapp, Matthias H
    • Gehner, Claus D
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  • Publication Date: 1973

Media Info

  • Media Type: Digital/other
  • Features: Figures; References; Tables;
  • Pagination: pp 36-48
  • Monograph Title: Application of interactive graphics to transportation systems planning
  • Serial:

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Filing Info

  • Accession Number: 00163592
  • Record Type: Publication
  • ISBN: 030902188X
  • Files: TRIS, TRB
  • Created Date: Oct 13 1981 12:00AM