Investigation of new vehicle detectors for high-speed signalized intersections.

Details

• Creators:
  Middleton, Dan ; Songchitruksa, Praprut ; Pratt, Mike ; Sunkari, Srinivasa R. ; Geedipally, Srinivas R. ; Charara, Hassan A.
• Corporate Creators:
  Texas A&M Transportation Institute
• Corporate Contributors:
  Texas. Dept. of Transportation. Research and Technology Implementation Office ; United States. Federal Highway Administration
• Subject/TRT Terms:
  • Dilemma zone
  • Signalized intersections
  • Vehicle detectors Indecision Zone
  • Dilemma Zone
  • High-Speed Signalized Intersections
  • Radar
  • Video
  • Magnetometer
  • Infrared
• Publication/ Report Number:
  FHWA/TX-15/0-6828-1
• Resource Type:
  Tech Report
• Geographical Coverage:
  Texas
• Corporate Publisher:
  Texas Department of Transportation. Research and Technology Implementation Office
• Abstract:
  Early indications from the use of the newest vehicle detectors for high-speed signalized intersections ; suggested that they perform well as replacements for the Texas Department of Transportation’s ; (TxDOT’s) legacy systems, but this early conclusion needed verification based on rigorous field testing ; in a variety of traffic and environmental conditions. This research investigated the performance ; characteristics of detectors designed for the stop line area and indecision zone detection. In some cases, ; new detectors involved two technologies to cover both upstream and stop line areas. Increasing use of ; infrared (IR) cameras with video imaging systems was an attempt to overcome some of the limitations of ; traditional video detection. While these IR cameras may improve video detection for some lighting and ; temperature conditions, evidence suggested that they do not improve detection performance under all ; conditions. ; The objectives of this research were to: ;  Determine current TxDOT-specific needs for new vehicle detectors. ;  Identify the most promising detectors for both stop line and dilemma zone detection. ;  Develop guidelines on each new technology and establish recommended controller and detector ; settings to guide TxDOT on installation and use of each detector and combination of detectors.
  More +
• Format:
  PDF
• Funding:
  Project 0-6828
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/30772/dot_30772_DS1.pdf
• File Type:
  [PDF - 6.79 MB]
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha-512:e5ee6ae7aa045b8057755b6373d66c7beadd88a2dd935044454ab4db599f008ae4d61c2dacbfc52fe5fcb0ecb85bff1492815f5417f0ac43175e28cf4f577e12