Personalized Rapid Transit (PRT) systems development is concerned with the more complex new generation of PRT systems that will utilize small automated vehicles closely spaced on an exclusive right-of-way to achieve a higher lane capacity and non-stop service, along with reduction of traffic congestion and pollution. The author perceives a need to carefully define and study operating policies relating to vehicle separation, and velocity as the capacity of the system increases. This report describes and evaluates operating policies for PRT systems and illustrates their implementation in a PRT vehicle autopilot. The vehicles frequency of passage and other considerations that contribute to the selection of such frequencies are the major topics of the report. Also studied are the various effects on system parameters and performance that follow the selection of an operating policy. The report examines 3 potential operating policies for PRT systems and defines the necessary limitations on headways resulting from design parameters and the effects of maneuvers. The operating policies considered are constant separation, constant K factor, and constant headway operation. A longitudinal control system was devised for the purpose of testing implementation of each operating policy. This test was accomplished by a digital computer simulation of a string of PRT vehicles controlled by the longitudinal control system models and operating according to the various policies. /UMTA/

  • Corporate Authors:

    Urban Mass Transportation Administration

    400 7th Street, SW
    Washington, DC  United States  20590
  • Authors:
    • Morag, D
  • Publication Date: 1974-5

Media Info

  • Pagination: 100 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00084755
  • Record Type: Publication
  • Source Agency: Urban Mass Transportation Administration
  • Report/Paper Numbers: UMTA-RDD-8-74-2
  • Files: NTIS, TRIS, USDOT
  • Created Date: May 7 1981 12:00AM