PARAMETRIC ANALYSIS OF DUAL-MODE STATION OPERATING CHARACTERISTICS

This paper reports the results of a preliminary analysis of the effects of certain system design factors on serial dock station performance. The analysis was performed by a simulation of a serial dock station that treats these factors parametrically. In addition to the simulation, an analysis of station cost was done to examine some of the trade-offs between cost and performance. Several conclusions were drawn concerning the performance of a serial dock station operating with a strategy that gave dock queue priority to vehicles coming into the station from the main line over vehicles coming in from the street. 1) Increasing the line queue rather than the dock queue is much more effective in reducing the number of misses; 2) The dock queue significantly affects the delays encountered by vehicles in the street queue under the present operating strategies; 3) The exit queue is strongly dependent on the number of berths in the dock queue; 4) For a given dock queue size and an assumed limit on the line and street queues, station throughput is relatively independent of line and street flows except that throughput does increase in the absence of either line or street flow. The analysis of the cost of a serial dock station led to the following conclusions. 1) Dock queue berths are about three times more expensive than a line, street, or exit queue berth; 2) Minimizing station costs will primarily increase street queue delays. 3) If time shifting is used instead of space shifting, queue costs can significantly reduce station costs.

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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:
    • Chiu, H Y
  • Conference:
  • Publication Date: 1976

Media Info

  • Media Type: Print
  • Pagination: p 103
  • Monograph Title: Dual-mode transportation
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    Open Access (libre)

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Filing Info

  • Accession Number: 00149259
  • Record Type: Publication
  • Files: TRIS, TRB, ATRI
  • Created Date: Mar 30 1977 12:00AM