QUALITY CONTROL OF WEIGH-IN-MOTION SYSTEMS USING STATISTICAL PROCESS CONTROL

Weigh-in-motion (WIM) data collected from continuously operating systems at test sections were reviewed. Data were processed using an extensive software quality check program, which was developed in joint effort with regions, agencies, and contractors. Data beyond specification limits are flagged as unusable, but this does not correct for system problems. One proposed methodology enhances the existing quality check program by monitoring data patterns. It corrects for calibration drift in distributions of gross vehicle weight of tractor semitrailers (loaded and unloaded). This method is labor-intensive, however. It is proposed that statistical process control be integrated with the existing quality check program. The review of WIM system data is summarized, and a statistical quality control methodology to facilitate post-processing of data flagged as unusable due to calibration drift is presented.

• Record URL:
  http://onlinepubs.trb.org/Onlinepubs/trr/1995/1501/1501-008.pdf
• Record URL:
  https://scholar.google.com/scholar_lookup?title=QUALITY+CONTROL+OF+WEIGH-IN-MOTION+SYSTEMS+USING+STATISTICAL+PROCESS+CONTROL&author=C.+Han&author=W.+Boyd&author=M.+Marti&publication_year=1995
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/03611981
• Supplemental Notes:
  • This paper appears in Transportation Research Record No. 1501, Pavement-Vehicle Interaction and Traffic Monitoring. Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved
• Authors:
  • Han, Chunhua
  • Boyd, William T
  • Marti, Michael M
• Publication Date: 1995

Language

• English

Media Info

• Features: Figures; References; Tables;
• Pagination: p. 72-80
• Monograph Title: Pavement-vehicle interaction and traffic monitoring
• Serial:
  • Transportation Research Record
  • Issue Number: 1501
  • Publisher: Transportation Research Board
  • ISSN: 0361-1981

Subject/Index Terms

• TRT Terms: Process control; Quality control; Statistical analysis; Weigh in motion
• Uncontrolled Terms: Statistical process control
• Old TRIS Terms: Calibration drift; Post-processing; Unusable data
• Subject Areas: Data and Information Technology; Highways; Operations and Traffic Management; Planning and Forecasting; I72: Traffic and Transport Planning;

Filing Info

• Accession Number: 00715517
• Record Type: Publication
• Files: TRIS, TRB, ATRI
• Created Date: Dec 28 1996 12:00AM