The paper discusses the various forms of control systems at present applied to some existing form of road or rail transport. Control strategies for new systems such as neverstop railways, moving pavements and driverless vehicles on reserved track are examined. Active and passive forms of guidance are reviewed, expressions are derived for safe headway and the safety factor in asynchronous control. The merits of synchronous and asynchronous control are compared. Switches, merges and crossing points, the components of intersections are discussed from the control point of view. The problems of station design are examined. The author concludes that only in safety, and in the avoidance of congestion, is an automatic system likely at present to out-perform a system with drivers, and there is no evidence to date confirming the possibility of commercial operation at short headways of say 3 seconds. /TRRK/

  • Corporate Authors:

    Warwick University, England

    Coventry, Warwickshire,   England 
  • Authors:
    • Thomas, T H
  • Publication Date: 1973-3


  • English

Media Info

  • Features: Figures;
  • Pagination: 21 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00147674
  • Record Type: Publication
  • Source Agency: Transport and Road Research Laboratory (TRRL)
  • Report/Paper Numbers: Working Paper 14 Analytic
  • Files: ITRD, TRIS
  • Created Date: Sep 20 1981 12:00AM