The need for vehicle weight data in planning and designing highway facilities has historically been satisfied by stopping selected vehicles at specially prepared roadside sites and weighing each wheel or each axle of the vehicle on either portable scales or on platform scales. This survey technique has been an expense as well as a safety hazard to both the surveying agency and the road user. A recently developed system for weighing highway vehicles in motion eliminates all user costs and reduces many of the traffic hazards and personnel expenses which have previously been inherent in weight surveys. Field tests of the in-motion weighing system indicate that accuracy comparable to that of conventional portable wheel weighing devices is feasible. A recommended weight survey program for the State of Texas that incorporates in-motion weighing and dimensioning is described in this report. An evaluation of the required number of survey sites, the number of trucks to be weighed, and sampling techniques for detecting timewise variations in vehicle weight is presented. The potential economic advantages of using in-motion weighing in lieu of conventional static weighing for statewide surveys are also analyzed. /Author/

  • Supplemental Notes:
    • Sponsored by the Texas State Department of Highways and Public Transportation. Study conducted in cooperation with the Department of Transportation, Federal Highway Administration.
  • Corporate Authors:

    University of Texas, Austin

    Center for Highway Research, 200 West 21st Street
    Austin, TX  United States  78712
  • Authors:
    • Machemehl, R B
    • Lee, C E
    • Walton, C M
  • Publication Date: 1975-9

Media Info

  • Features: Appendices; Figures; References; Tables;
  • Pagination: 126 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00139232
  • Record Type: Publication
  • Report/Paper Numbers: (FHR3-10-74-191-1F Final Rpt.
  • Files: TRIS
  • Created Date: Sep 4 1976 12:00AM