CALCULATION OF ROAD TRAFFIC SIGNAL SETTINGS

There is still a growing demand for efficient systems of co-ordinated traffic control. However, not only is the number of vehicles increasing, but also the areas requiring integral control are becoming larger. It is still possible to improve control of an uncomplicated intersection by heuristic methods based on experience, but this is no longer possible for modern large-scale control problems. The aid of the computer can solve these problems. It is then possible to simulate a simplified model of the actual situation for a certain length of time. Such a plan requires the construction of a quantitative mathematical model of the control method, the behaviour of the traffic and the structure of the area to be controlled. Another requirement is to express mathematically the criterion used to judge the effectiveness of the control system. The criterion used is the mean total delay that each car incurs. The article starts with an explanation of the model used to derive delay formulated for single intersections. Thereafter an application of these formulae to a whole network controlled by a fixed-time program is presented. /TRRL/

  • Corporate Authors:

    Pilips Traffc Automation Group

    156 Maanweg
    The Hague,   Netherlands 
  • Authors:
    • BRANDT, R
    • Schalkwijk, W F
    • Schipper, H
  • Publication Date: 0

Media Info

  • Features: Figures; References;
  • Pagination: 25 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00196868
  • Record Type: Publication
  • Source Agency: Institute for Road Safety Research, SWOV
  • Report/Paper Numbers: SXB5 Monograph
  • Files: ITRD, TRIS
  • Created Date: Oct 17 1979 12:00AM