This paper describes the development of a method for accurately recording the numberplates and times of passing of a high sample of vehicles in heavy flow situations using low-cost portable tape recorders. The method has been extensively tested and found to be better than existing methods in terms of timing accuracy, the sample size obtained and ease of transportation. A similar method has been developed for recording data from moving observer surveys, enabling the job to be carried out by only one observer with consequent savings in survey costs. (TRRL)

  • Availability:
  • Corporate Authors:

    Printerhall Limited

    29 Newmart Street
    London W1P 3PE,   England 
  • Authors:
    • Montgomery, F O
  • Publication Date: 1984-6

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00392969
  • Record Type: Publication
  • Source Agency: Transport Research Laboratory
  • Report/Paper Numbers: HS-037 547
  • Files: ITRD, TRIS
  • Created Date: May 31 1985 12:00AM