CLASSIFICATION YARD COMPUTER CONTROL SYSTEMS

A scheme for classification yard computer control systems (CYCCS) is proposed based on the analysis of experimental data collected from Chinese yard environments. The speed-control system configuration proposed includes a four-level retarder arrangement, various sensors, a process-control computer, and a system redundancy scheme. Much attention is given to measurement of car-rollability data. It is noted that the accuracy of some rollability data collected during past years is unacceptable because of the measurement techniques and the devices for measuring rollability. The primary error sources are analyzed, and some solutions to this problem are also discussed. The storng relationship between rollability and velocity of cars, however, has been widely noticed recently. Based on this idea, a piecewise-linear mathematical model is suggested for target-shooting control systems.

• Record URL:
  • http://onlinepubs.trb.org/Onlinepubs/trr/1983/927/927-003.pdf
• Summary URL:
  • https://scholar.google.com/scholar_lookup?title=CLASSIFICATION+YARD+COMPUTER+CONTROL+SYSTEMS&author=Y.+Min&author=L.+Yang&publication_year=1983
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/0309036178
• Supplemental Notes:
  • Publication of this paper sponsored by Committee on Rail Freight Classification Terminal Design. 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:
  • Min, Yinghua
  • Yang, Lianlong
• Conference:
  • Railroad Classification Yard Workshop, 3rd, USA
• Publication Date: 1983

Media Info

• Media Type: Print
• Features: Figures; References;
• Pagination: pp 13-19
• Monograph Title: Innovation in classification yard technology: proceedings of the third railroad classification yard workshop
• Serial:
  • Transportation Research Record
  • Issue Number: 927
  • Publisher: Transportation Research Board
  • ISSN: 0361-1981

Subject/Index Terms

• TRT Terms: Classification yards; Couplers; Formulas; Information processing; Radar; Rolling resistance; Sensors; Speed control; Yard operations
• Old TRIS Terms: Rollability; Yard controls
• Subject Areas: Design; Highways; Planning and Forecasting; Railroads; Terminals and Facilities; I21: Planning of Transport Infrastructure;

Filing Info

• Accession Number: 00391581
• Record Type: Publication
• ISBN: 0309036178
• Files: TRIS, TRB
• Created Date: Jan 30 1985 12:00AM