ESTIMATION OF TRUCK TRAFFIC VOLUME FROM SINGLE LOOP DETECTORS WITH LANE-TO-LANE SPEED CORRELATION

An algorithm for real-time estimation of truck traffic in multilane freeways was proposed. The algorithm used data from single loop detectors--the most widely installed surveillance technology for urban freeways in the United States. The algorithm worked for those freeway locations that have a truck-free lane and exhibit high lane-to-lane speed correlation. These conditions are met by most urban freeway locations. The algorithm produced real-time estimates of the truck traffic volumes at the location. It also can be used to produce alternative estimates of the mean effective vehicle length, which can improve speed estimates from single loop detector data. The algorithm was tested with real freeway data and produced estimates of truck traffic volumes with only 5.7% error. It also captured the daily patterns of truck traffic and mean effective vehicle length. Applied to loop data on Interstate 710 near Long Beach, California, during the dockworkers' lockout October 1 to 9, 2002, the algorithm found a 32% reduction in five-axle truck volume.

• Record URL:
  • https://doi.org/10.3141/1856-11
• Summary URL:
  • http://scholar.google.com/scholar_lookup?title=ESTIMATION+OF+TRUCK+TRAFFIC+VOLUME+FROM+SINGLE+LOOP+DETECTORS+WITH+LANE-TO-LANE+SPEED+CORRELATION&author=J.+Kwon&author=P.+Varaiya&author=A.+Skabardonis&publication_year=2003
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/0309085926
• Supplemental Notes:
  • This paper appears in Transportation Research Record No. 1856, Freeways, High-Occupancy Vehicle Systems, and Traffic Signal Systems 2003.
• Corporate Authors:

  Transportation Research Board

  500 Fifth Street, NW
  Washington, DC  United States  20001
• Authors:
  • Kwon, J
  • Varaiya, P
  • Skabardonis, A
• Publication Date: 2003

Language

• English

Media Info

• Features: Figures; References; Tables;
• Pagination: p. 106-117
• Serial:
  • Transportation Research Record
  • Issue Number: 1856
  • Publisher: Transportation Research Board
  • ISSN: 0361-1981

Subject/Index Terms

• TRT Terms: Accuracy; Algorithms; Estimates; Freeways; Loop detectors; Real time information; Speed; Traffic data; Traffic volume; Truck traffic; Vehicle size
• Geographic Terms: Long Beach (California)
• Subject Areas: Highways; Operations and Traffic Management; I71: Traffic Theory;

Filing Info

• Accession Number: 00968443
• Record Type: Publication
• ISBN: 0309085926
• Files: TRIS, TRB, ATRI
• Created Date: Jan 2 2004 12:00AM