VEHICLE DETECTOR LOOP CONFIGURATIONS

This research which lays the foundation for subsequent investigations in this area of loop configurations, has developed some useful modeling and analysis techniques, increased the understanding of the complex parameter interrelations affecting loop performance, and has pointed up significant deficiencies for some loop configurations. It has shown that even between identical configurations selection of certain dimensions can be very critical to performance. The two favored loop configurations which have emerged from the research appear to offer significant advantages over the traditional rectangular configuration. This phase of the project which was directed towards the investigation of the loops' electrical characteristics, takes an approach based on 2 parameters: its sensitivity to in-lane motor cycles, and its insensitivity to adjacent-lane cars and trucks. A Gaussion (normal) distribution of vehicular position across the lane has been assumed, enabling the analysis of a loop's electrical performance to involve the consideration of its sensitivity to 90 percent of in-lane motor cycles, and its insensitivity to 90 percent of adjacent lane cars and trucks. Appropriate weighting factors have been applied to all the parameters in this study.

• Corporate Authors:

  Amalgamated Wireless (Australasia) Limited

  Research Laboratory, 422 Lane Cove Road
  North Ryde, New South Wales 2113,   Australia 
• Authors:
  • Davies, L W
  • DEAN, K G
  • MacDonald, D E
  • Morris, D V
• Publication Date: 1976-11

Language

• English

Media Info

• Features: Figures; Tables;
• Pagination: 150 p.

Subject/Index Terms

• TRT Terms: Loop detectors; Mathematical models; Motorcycles; Traffic control; Traffic lanes; Vehicle detectors
• Uncontrolled Terms: Models
• ITRD Terms: 1057: Air transport network; 6925: Circuit (electr); 224: Cost; 1614: Damage; 9014: Dimension; 6954: Electricity; 6965: Electronics; 6997: Frequency; 9108: Improvement; 6927: Induction; 3840: Installation; 6936: Magnetism; 6136: Measurement; 5455: Mechanics; 6205: Model (not math); 6916: Resistance (electr); 6204: Scale; 5928: Sensitivity; 6120: Sensor; 9073: Shape; 6748: Sound; 2972: Surfacing; 5414: Time; 565: Traffic signal; 6140: Transducer
• Subject Areas: Highways; Operations and Traffic Management;

Filing Info

• Accession Number: 00148929
• Record Type: Publication
• Source Agency: Transport and Road Research Laboratory (TRRL)
• Report/Paper Numbers: Rept. No. R76-68
• Files: ITRD, TRIS, ATRI
• Created Date: Aug 31 1977 12:00AM