VEHICLE DETECTOR EVALUATION STUDY

ANY AUTOMATIC TRAFFIC CONTROL SCHEME MUST DETECT VEHICLES, SO IT IS ESSENTIAL TO KNOW THE RELIABILITY AND ACCURACY OF THE PROCESS OF VEHICLE DETECTION. TO PROVIDE THIS INFORMATION, SEVERAL DIFFERENT TYPES OF COMMERCIALLY AVAILABLE DETECTORS WERE INSTALLED IN A BUSY MAIN ROAD WHICH IS ADJACENT TO THE UNIVERSITY OF BIRMINGHAM. THE TRAFFIC FLOWS ON THIS SITE VARY CONSIDERABLY THROUGH THE DAY AND THE PEDESTRIAN CROSSING CAUSES QUEUES TO FORM AND VEHICLES TO ACCELERATE, DECELERATE, AND CHANGE LANES. THE AIM OF THE STUDY IS TO DETERMINE THE PERFORMANCE OF THE DETECTORS IN THIS RANGE OF TYPICAL URBAN TRAFFIC CONDITIONS. THE METHODS USED WERE MICRO-AND MACRO-ANALYSIS AND CONTROL TESTS. THE PAPER IS AN OUTLINE OF METHODOLOGY RATHER THAN A COMPREHENSIVE STATEMENT OF FINDINGS. IT WAS FOUND THAT THE SMALLER LOOP DETECTORS WERE THE MOST ACCURATE IN COUNTING VEHICLES FOR THE VARIOUS TYPES OF TRAFFIC CONDITIONS WHICH OCCURRED. IN PARTICULAR, THE SQUARE LOOP, MEASURING 6 X 6 FEET AND UTILIZING PHASE CHANGE FOR DETECTION, WAS OBSERVED TO BE THE MOST ACCURATE IN THESE TESTS. /BPR/

  • Availability:
  • Supplemental Notes:
    • Vol 10, pp 68-72
  • Corporate Authors:

    N/A

    ,   United States 
  • Authors:
    • Morley, P J
  • Publication Date: 0

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Filing Info

  • Accession Number: 00227178
  • Record Type: Publication
  • Source Agency: Traffic Systems Reviews & Abstracts
  • Files: TRIS
  • Created Date: Aug 13 2004 6:56PM