This paper describes the existing area traffic control system and the studies leading to the implementation of new methods of integrated traffic control. A description is given of the system introduced in September 1980 for the control of the Glasgow urban motorway network. The system carries a high volume of local and city by-pass traffic. One particular section, a dual five-lane carriageway carries 115000 vehicles per day and has eleven entry and exit ramps within a distance of half a mile. The computerised traffic control system comprises a central control linked to 374 signalling units incorporated into 99 overhead gantries via computerised outstations. Up to 14 lane destination and warning signals can be displayed on each unit. Each lane has individual signalling and the system automatically generates the relevant signs upstream and across lanes as far as necessary for safe conditions. Motorway surveillance is by a 24-camera closed-circuit TV system; the cameras used can be remotely panned, tilted and zoomed. Examples are given of the lead-in and count-down sequences for the implementation of specific restrictions. A general description is given of the hardware, and future developments are outlined. (TRRL)

  • Availability:
  • Corporate Authors:

    Printerhall Limited

    29 Newmart Street
    London W1P 3PE,   England 
  • Authors:
    • Mowatt, A
  • Publication Date: 1980-11

Media Info

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Filing Info

  • Accession Number: 00334994
  • Record Type: Publication
  • Source Agency: Transport Research Laboratory
  • Files: ITRD, TRIS
  • Created Date: Sep 16 1981 12:00AM