THE ORIGINS OF CENTRAL INTEGRATED TRAFFIC CONTROL

SOME RECENT TRENDS IN TRAFFIC CONTROL SYSTEMS AND THE IMPACT WHICH THEY CAN HAVE ON TRAFFIC CONTROL IN LONDON ARE DESCRIBED. THE CONTROL OF STREET TRAFFIC WITH TRAFFIC SIGNALS IS DESCRIBED, AND EXPERIMENTS INTO AREA TRAFFIC CONTROL ARE LISTED AND THEIR BENEFITS DISCUSSED. PARTICULAR EMPHASIS IS GIVEN TO THE CATHODE-RAY-TUBE DISPLAYS AND MAGNETIC-TAPE DATA-RECORDING EQUIPMENT WHICH ARE BEING ADDED TO THE WEST LONDON COMPUTER-CONTROL EXPERIMENT TO GIVE AN INSIGHT INTO THE BENEFITS OBTAINABLE FROM GOOD MAN-MACHINE COMMUNICATION. A DESCRIPTION IS GIVEN OF FREEWAY CONTROL EXPERIMENTS IN THE UNITED STATED WHICH COVER THE FIELDS OF SAFER MERGING AT ON-RAMPS, CONGESTION CONTROL BY METERING TRAFFIC AT ON-RAMPS, AND METHODS OF IMPROVING TRAFFIC-FLOW STABILITY. SURVEILLANCE OF A FREEWAY CAN BE DONE BY MOTORIST-AID TELEPHONES, VEHICLE DETECTORS, CLOSED CIRCUIT TELEVISION, AND RADIOTELEPHONE. FREEWAY CONTROL SIGNALS ARE USED IN ENGLAND, PARTICULARLY TO ALERT DRIVERS TO EMERGENCIES. THE ADVANTAGES OF CENTRALIZING AND COMBINING FREEWAY CONTROL AND AREA TRAFFIC CONTROL ARE STRESSED. THE RESULTANT CONCEPT IS CHRISTENED CITRAC AND THE EQUIPMENT REQUIRED FOR IT IS DESCRIBED BRIEFLY. /AUTHOR/

  • Corporate Authors:

    Loughborough University

    Transport Studies Group
    Department of Civil and Building Engineering
    Loughborough, Leicestershire  United Kingdom  LE11 3TU
  • Authors:
    • Huddart, K W
  • Publication Date: 1969-3-26

Subject/Index Terms

Filing Info

  • Accession Number: 00225944
  • Record Type: Publication
  • Source Agency: Traffic Systems Reviews & Abstracts
  • Report/Paper Numbers: pp 4.2.1 - 4.2.17
  • Files: TRIS
  • Created Date: Apr 18 1971 12:00AM