Automated guideway transit (AGT) systems represent a new class of urban transport, where automatically controlled vehicles reside on dedicated guideway networks. To assure safe and reliable operation at high capacity, vehicle spacings and velocities must be accurately regulated. An important aspect in the design of AGT systems is the communication requirements for the longitudinal control of vehicles, that is, the requirements to measure vehicle states, transmit this information between vehicles, and subsequently control the individual vehicles. This paper examines the trade-offs in the data rates, word lengths, and allowable transmission time lags needed to maintain an acceptable level of vehicle performance, and how these requirements relate to the allocation of control computation between vehicle- and wayside-based computers. A nonlinear control law designed for short-headway vehicle-follower systems provides a baseline to examine these trade-offs. The specification of the parameters entering the problem is approached through analytically derived results, using simplified linear models with verification and expansion of these results through a detailed simulation.

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    Institute of Electrical and Electronics Engineers (IEEE)

    3 Park Avenue, 17th Floor
    New York, NY  United States  10016-5997
  • Authors:
    • Pue, A J
  • Publication Date: 1979-2

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Filing Info

  • Accession Number: 00196458
  • Record Type: Publication
  • Source Agency: Engineering Index
  • Files: TRIS
  • Created Date: Aug 15 1979 12:00AM