A MICROPROCESSOR-BASED TRAFFIC CONTROLLER FOR ISOLATED INTERSECTIONS

The subject of this paper is the application of a feed-forward strategy to isolated intersection traffic controllers. The criterion uses the fact that vehicles approaching an intersection are detected far away from the intersection. This information is then fed to a microprocessor which in turn can develop its control policy long before the vehicles arrive at the intersection such that the results are related to the vehicles that the intersection is currently serving. A special program is developed and tested utilising the intel 8080 microprocessor. The program is tested on a simulated symmetrical intersection. The results of various tests showed a marginal improvement over normal vehicle-actuated signals when traffic was unsaturated. (Author/TRRL)

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/00410683
• Corporate Authors:

  Printerhall Limited

  29 Newmart Street
  London W1P 3PE,   England 
• Authors:
  • Al-Khalili, A J
• Publication Date: 1980-7

Language

• English

Media Info

• Features: Figures; References;
• Pagination: p. 365-368
• Serial:
  • Traffic Engineering & Control
  • Volume: 21
  • Issue Number: 7
  • Publisher: Hemming Group, Limited
  • ISSN: 0041-0683
  • Serial URL: http://www.tecmagazine.com/

Subject/Index Terms

• TRT Terms: Computer programs; Electronics; Equipment; Improvements; Intersections; Mathematical models; Microprocessors; Simulation; Traffic control; Traffic flow
• ITRD Terms: 6965: Electronics; 3674: Equipment; 455: Junction; 6473: Mathematical model; 9103: Simulation; 8645: Software; 654: Traffic control
• Subject Areas: Highways; Operations and Traffic Management; I73: Traffic Control;

Filing Info

• Accession Number: 00324806
• Record Type: Publication
• Source Agency: Transport and Road Research Laboratory (TRRL)
• Files: ITRD, TRIS
• Created Date: Sep 16 1981 12:00AM