The author outlines the development of portable traffic signals, from mechanical vehicle actuated systems to microwave detection and the Lux Detector. Details are given of the national portable traffic signals trials, Somerset Country trials and the Hullavington field trials which highlighted the capabilities and limitations of the equipment. As a result of the tests, the road cross cable protection was improved and the minimum green recall was perfected. (TRRL)

  • Availability:
  • Supplemental Notes:
    • This paper was presented at Seminar K, Traffic Operation and Management, held at the PTRC 11th Annual Summer Meeting, University of Sussex, England, 4-7 July, 1983.
  • Corporate Authors:

    PTRC Education and Research Services Limited

    110 Strand
    London WC2,   England 
  • Authors:
    • LUX, L J
  • Conference:
  • Publication Date: 1983

Media Info

  • Pagination: p. 167-180

Subject/Index Terms

Filing Info

  • Accession Number: 00382697
  • Record Type: Publication
  • Source Agency: Transport Research Laboratory
  • ISBN: 0-86050-112-4
  • Report/Paper Numbers: Volume P240
  • Files: ITRD, TRIS
  • Created Date: Apr 30 1984 12:00AM