Title: Static calibration methodology for weigh-in-motion systems

Authors: Umit Sonmez, Nina Sverdlova, Robin Tallon, David Klinikowski, Donald Streit

Addresses: The Pennsylvania Transportation Institute, Transportation Research Building, The Pennsylvania State University, University Park, PA 16802, USA. ' The Pennsylvania Transportation Institute, Transportation Research Building, The Pennsylvania State University, University Park, PA 16802, USA. ' The Pennsylvania Transportation Institute, Transportation Research Building, The Pennsylvania State University, University Park, PA 16802, USA. ' The Pennsylvania Transportation Institute, Transportation Research Building, The Pennsylvania State University, University Park, PA 16802, USA. ' The Pennsylvania Transportation Institute, Transportation Research Building, The Pennsylvania State University, University Park, PA 16802, USA

Abstract: A weigh-in-motion (WIM) static calibration methodology is described and demonstrated. The calibration procedure quantifies WIM response variation across the width of WIM sensors. A simple methodology is described to track wheel path location across a WIM system. With knowledge of WIM sensitivity variation across sensor width, along with wheel trajectory location, this methodology offers the possibility of improvement in WIM system performance. The specific WIM system studied was shown to be minimally affected by temperature and results suggest improvements in installation technique. This static calibration methodology complements, but does not replace, typical WIM dynamic calibration requirements.

Keywords: static calibration; strip-type WIM sensors; vehicle-based weigh-in-motion system; weigh-in-motion; WIM.

DOI: 10.1504/IJHVS.2000.004836

International Journal of Heavy Vehicle Systems, 2000 Vol.7 No.2/3, pp.191 - 204

Published online: 30 Jun 2004 *

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