DEVELOPMENT OF AN ELECTRONIC MEANS OF WEIGHING VEHICLES IN MOTION

AN IN-STREAM WEIGHING PLATFORM WAS DESIGNED AND INSTALLED IN THE EASTBOUND LANE OF I-64 AND 75 NEAR LEXINGTON, KENTUCKY. THE BROKEN-BRIDGE SCALE PLATFORM WAS DESIGNED WITH THE OUTER EDGES OF THE TWO SECTIONS SUPPORTED ON HINGES AND CONTIGUOUS EDGES SUPPORTED BY TWO 20,000-POUND CAPACITY LOAD CELLS. THE ASSEMBLED SCALE MEASURES 4'-6" X 10'-1/2" WITH A TOTAL WEIGHT OF ABOUT 2,000 POUNDS. THE ELECTRONICS DEVELOPED INCLUDED DIGITIZING CIRCUITRY WHICH PROCESSED THE LOAD CELL SIGNALS AND RECORDED THE DATA ON DIGITAL MAGNETIC TAPE. COMPUTER PROCESSING OF THE FIELD DATA PRODUCED TABULAR INFORMATION ON VEHICLE SPEED, AXLE SPACING, NUMBER OF AXLES, VEHICLE CLASSIFICATION, TIME OF DAY, AND WEIGHT FOR EACH VEHICLE, AS WELL AS VOLUMINOUS STATISTICAL DATA SUCH AS AVERAGE DAILY TRAFFIC AND EQUIVALENT AXLELOADS. CONCEPTUALLY, THE SYSTEM WAS GOOD, BUT NUMEROUS ELECTRONIC AND MECHANICAL PROBLEMS COMPOUNDED TO RENDER THE PRESENT SYSTEM INOPERATIVE. FUTURE DYNAMIC WEIGHING SYSTEM DESIGNS SHOULD CONSIDER PORTABLE, LIGHTWEIGHT SCALES AND ELECTRONIC INSTRUMENTATION SUITABLE FOR MOUNTING IN A VEHICLE, THUS PROVIDING A FLEXIBLE DATA-GATHERING SYSTEM THAT WILL BE MORE READILY MAINTAINABLE. /AUTHOR/

  • Record URL:
  • Supplemental Notes:
    • Res Rpt 307, FINAL RPT, KYHPR-61-27, HPR-1(6), PART 2, 40
  • Corporate Authors:

    Kentucky Department Highways

    ,    
  • Authors:
    • Carr, B W
    • Rizenbergs, R L
  • Publication Date: 0

Subject/Index Terms

Filing Info

  • Accession Number: 00228130
  • Record Type: Publication
  • Files: TRIS, STATEDOT
  • Created Date: Dec 20 1971 12:00AM