INSTALLATION REPORT-STATE DEMONSTRATION PROJECT--LOOP DETECTORS

The Virginia Department of Highways and Transportation frequently utilizes induction loops in its vehicle detector systems. Although not documented, there have been many instances of loop failure; therefore, the practices and materials used by the Department in installing loop detectors were investigated. Two field tests were undertaken--the encasement of the loop wires by PVC conduit and vinyl tubing and the performance of different types of loop sealants. This report documents the installation of these two field demonstrations. Findings based on the installation are given; however, further findings, conclusions, and recommendations will be developed after an appropriate evaluation period.

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• Record URL:
  • https://rosap.ntl.bts.gov/view/dot/19016
• Corporate Authors:

  Virginia Highway and Transportation Research Council

  Charlottesville, VA  United States 

  Virginia Department of Highways

  Traffic and Planning Division, 1221 East Broad Street
  Richmond, VA  United States  23219
• Authors:
  • Arnold Jr, E D
  • Munn, G L
• Publication Date: 1982-10

Media Info

• Pagination: 27 p.

Subject/Index Terms

• TRT Terms: Demonstration projects; Failure; Loop detectors; Performance; Polyvinyl chloride
• Uncontrolled Terms: Encasement
• Subject Areas: Highways; Operations and Traffic Management; I73: Traffic Control;

Filing Info

• Accession Number: 00392174
• Record Type: Publication
• Report/Paper Numbers: VHTRC 83-R15 Intrm Rpt.
• Files: NTL, TRIS, STATEDOT
• Created Date: Mar 29 1985 12:00AM