Automatic vehicle identification (AVI) and weigh-in-motion (WIM) equipment were installed at the northbound weigh/enforcement station on I-65 in Simpson County, Kentucky. The objectives were to determine the reliability and accuracy of the equipment and to determine the benefits/costs for the trucking industry and enforcement agencies. The test site for evaluation of the equipment became operational in July 1991 and the evaluation continued through June 1993. AVI equipment was provided by Amtech Corporation and WIM equipment by International Road Dynamics. Participating motor carriers were united Parcel Service and Averitt Express, with a total of 114 trucks equipped with transponders. The system operated the first year with the AVI and WIM systems serving only the function of verifying the passage of an equipped truck. During the second phase, the AVI/WIM system was moved to a position in advance of the station where equipped trucks could be identified and given a pre-clearance signal. Overall, it was determined that the electronic equipment could be used to collect data more accurately than through a manual process. However, it was also found that AVI and WIM equipment were not without problems, particularly when interfacing the two types of equipment. Benefits gained were increased levels of understanding of the reliability of AVI and WIM equipment. Improved relationships between motor carriers and enforcement personnel were seen as a benefit. A preliminary evaluation of systemwide application of AVI does not indicate it would be cost-effective unless greater benefits were gained by motor carriers.

  • Record URL:
  • Corporate Authors:

    University of Kentucky, Lexington

    Kentucky Transportation Center
    College of Engineering, 176 Raymond Building
    Lexington, KY  United States  40506-0281

    Kentucky Transportation Cabinet

    200 Mero Street
    Frankfort, KY  United States  40622

    Federal Highway Administration

    1200 New Jersey Avenue, SE
    Washington, DC  United States  20590
  • Authors:
    • Pigman, J G
    • Crabtree, J D
  • Publication Date: 1993-12


  • English

Media Info

  • Features: Appendices; Figures; Tables;
  • Pagination: 41 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00664353
  • Record Type: Publication
  • Report/Paper Numbers: KTC-93-35
  • Contract Numbers: KYHPR-91-11135
  • Created Date: Aug 19 1994 12:00AM