Vehicle detector loop configurations - phase 4

This report covers phase 4 of the investigation into inductive loops for presence detection at traffic signals. Phase 1 was a preliminary stage in which four nominated loop configurations were examined briefly, whilst in phase 2, additional loops were devised in order to improve electrical performance. The two most important aims were improvement of sensitivity to motorcycles and reduction of sensitivity to motorcycles and reduction of sensitivity to vehicles in adjacent lanes. It was the aim, further, that once a vehicle entered the sensing area it should remain detectable until it left the area, the length of which was taken to be 4.5M. In order to expedite investigations, a 1/20 scale model technique was evolved.

  • Supplemental Notes:
    • Report prepared for New South Wales. Department of Main Roads.
  • Authors:
    • Dean, K G
    • Macdonald, D E
    • Morris, D J
  • Publication Date: 1977-6


  • English

Media Info

  • Pagination: 1 vol (various pagings)
  • Serial:
    • Issue Number: R77-28

Subject/Index Terms

Filing Info

  • Accession Number: 01439974
  • Record Type: Publication
  • Source Agency: ARRB
  • Files: ATRI
  • Created Date: Aug 24 2012 10:45PM