LARGE-AREA DETECTION AT INTERSECTION APPROACHES

The literature on this subject has been reviewed and a coherent restatement is attempted of the relationship between controller operation and large area detector design. This attempt to clarify the compromises that are forced on the traffic engineer in his efforts to reach his design objectives discusses the potential advantages and disadvantages of the loop-occupancy control as well s the application to left-turn lanes. The detection of small vehicles (motorcycles), general application to through lanes and right-turn lanes, right-turn-on-red, low-speed approaches, and the short-green problem on high-speed approaches are also discussed. Important experimentation in large-area detection has been performed in California. Shifting presence zone detection developed in Sacramento County, area detection used in San Diego, and minicomputer developed to supply conventional logic and whatever innovations that can be devised by the traffic engineer are briefly outlined.

• Supplemental Notes:
  • Work of Technical Committee 17, Southern Section ITE.
• Corporate Authors:

  Institute of Traffic Engineers

  2029 K Street, NW
  Washington, DC    20006
• Publication Date: 1976-6

Media Info

• Features: Figures; References;
• Pagination: p. 28-37
• Serial:
  • Traffic Engineering
  • Volume: 46
  • Issue Number: 6
  • Publisher: Institute of Traffic Engineers

Subject/Index Terms

• TRT Terms: Approach lanes; Green interval; High speed ground transportation; High speed vehicles; Intersections; Left turns; Loops (Control systems); Minicomputers; Motorcycles; Right turn lanes; Right turn on red; Speed; Through traffic; Traffic control; Traffic engineering; Vehicle detectors
• Uncontrolled Terms: Controllers
• Old TRIS Terms: Intersection approach
• Subject Areas: Highways; Operations and Traffic Management; Railroads;

Filing Info

• Accession Number: 00138126
• Record Type: Publication
• Files: TRIS
• Created Date: Sep 16 1976 12:00AM