THE INDUCTIVE LOOP VEHICLE DETECTOR: INSTALLATION ACCEPTANCE CRITERIA AND MAINTENANCE TECHNIQUES

The paper describes techniques to improve the operation and reliability of Inductive Loop Vehicle Detectors. Three aspects are discussed: Installation design aids, installation acceptance criteria and maintenance techniques. The paper is divided into two sections, the first titled 'To the Traffic Engineer' and the second 'To the Maintenance Technician'. The emphasis is on practical solutions to design, installation and maintenance problems. Technical data is provided, based on measurements of test loops located at the California Transportation Laboratory's Detector test site. All loops tested were 6 feet (1.83 meter) 'square' loops consisting of three turns of 12 AWG (20 gage metric) wire.

• Corporate Authors:

  California Department of Transportation

  Transportation Laboratory
  5900 Folsom Boulevard
  Sacramento, CA  United States  95819

  Federal Highway Administration

  1200 New Jersey Avenue, SE
  Washington, DC  United States  20590
• Authors:
  • Ingram, J W
• Publication Date: 1976-3

Media Info

• Pagination: 29 p.

Subject/Index Terms

• TRT Terms: Acceptance; Design; Detectors; Highway traffic control; Inductance; Installation; Loop detectors; Magnetic detectors; Magnetic induction; Maintenance; Tests; Vehicle detectors
• Uncontrolled Terms: Acceptability; Design criteria
• Old TRIS Terms: Magnetic detection
• Subject Areas: Design; Geotechnology; Highways; Maintenance and Preservation; Materials; Operations and Traffic Management;

Filing Info

• Accession Number: 00151739
• Record Type: Publication
• Source Agency: National Technical Information Service
• Report/Paper Numbers: CADOTTL-1387-1-76-15Intrm Rpt., 631387
• Files: TRIS, USDOT, STATEDOT
• Created Date: Apr 27 2003 12:00AM