AREA TRAFFIC CONTROL: A COMPARATIVE STUDY OF THE EFFECT OF SCAN PERIOD ON CONTROL PERFORMANCE

This paper analyses the DOE's requirements for a one-second scan period in area traffic control by computer, in regard to both system security and traffic control parameters. It is shown that although the one-second scan period could have advantages for the security of the system, it has no great influence on the control parameters of a traffic system operated on a fixed-time basis, e.g. Transyt. Although the data transmission system can be operative on a one-second scan rate for system security, application programs such as the output of traffic signal timings need only to be updated once every two seconds. This method saves a large amount of the processor time and enables smaller computers to be used for atc implementation. /Author/TRRL/

  • Availability:
  • Corporate Authors:

    Printerhall Limited

    29 Newmart Street
    London W1P 3PE,   England 
  • Authors:
    • Al-Khalili, A J
  • Publication Date: 1976-6

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00142101
  • Record Type: Publication
  • Source Agency: Transport and Road Research Laboratory (TRRL)
  • Report/Paper Numbers: Serial
  • Files: ITRD, TRIS
  • Created Date: Jun 17 1977 12:00AM