The subject research is an outgrowth of an earlier application of video technology to the collection of license plate data for the external origin-destination survey conducted in 1991 by the Central Transportation Planning Staff of the Boston Metropolitan Planning Organization. In subsequent developments, an automated machine vision license plate reading system was used in the place of human operators to transcribe videotaped license plate images into a computer file. This license plate reading system was evaluated by the Volpe National Transportation Systems Center (VNTSC) in an extensive series of travel time surveys conducted in 1993 for the Federal Highway Administration by the transportation planning staffs of Boston, Seattle and Lexington, Kentucky MPOs. A sample of 12 hours of the 1500 hours of videotaped license plate records collected in the course of the VNTSC surveys was analyzed frame-by-frame at the Universiy of Massachusetts at Amherst using both manual and machine vision transcription procedures. It was determined that both the manual and machine vision procedures produce essentially identical, precise and statistically robust estimates of mean travel times between survey stations. The machine vision system produced travel time estimates in as little as one-tenth the time required by manual operators.

  • Supplemental Notes:
    • Title on document: Use of Video Machine Vision Technology to Estimate Travel Time.
  • Corporate Authors:

    University of Massachusetts, Amherst

    Transportation Center, 130 Natural Resources Road
    Amherst, MA  United States  01003

    New England University Transportation Center

    Massachusetts Institute of Technology
    77 Massachusetts Avenue, Room 40-279
    Cambridge, MA  United States  01239

    Department of Transportation

    University Transportation Centers Program, 1200 New Jersey Avenue, SE
    Washington, DC  United States  20590
  • Authors:
    • Hu, A
  • Publication Date: 1995-2


  • English

Media Info

  • Features: Appendices; References; Tables;
  • Pagination: 110 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00732037
  • Record Type: Publication
  • Source Agency: Federal Transit Administration
  • Contract Numbers: DTRS95-G-0001
  • Files: TRIS, ATRI, USDOT
  • Created Date: Feb 25 1997 12:00AM