Title: Weigh-In-Motion studies using strip-type sensors: the preliminary results

Authors: Umit Sonmez, Donald A. Streit, Robin Tallon, David Klinikowski

Addresses: Mechanical Engineering Department, MEKAR Laboratory, Istanbul Technical University, Gumussuyu, Istanbul, Turkey. ' Pennsylvania Transportation Institute, The Pennsylvania State University, University Park, Pennsylvania, USA. ' Pennsylvania Transportation Institute, The Pennsylvania State University, University Park, Pennsylvania, USA. ' Pennsylvania Transportation Institute, The Pennsylvania State University, University Park, Pennsylvania, USA

Abstract: The various conditions of dynamic vehicle tyre forces on pavement loading have been investigated by using strip type commercially available piezo-electric Weigh In-Motion (WIM) sensors. Usually, the WIM load is found by empirically relating the peak voltage of the signal to the static wheel weight, and the area under the signal and the vehicle speed are not considered. A formula considering the area under the WIM signal and the moving load is presented. Whether or not static calibration factor of strip type sensors is sufficient to calculate the vehicle dynamic load is determined and a quasi-static vehicle pass over calibration methodology for future experiments is suggested. This paper also reviews the detailed description of the research carried out on existing WIM sensors and related systems.

Keywords: vehicle dynamics; WIM systems; tyre loads; static calibration; dynamic calibration; instrumented vehicles; weigh-in-motion; vehicle tyre forces; pavement loading; road loading; piezoelectric sensors; WIM load; strip type sensors; WIM sensors.

DOI: 10.1504/IJHVS.2008.017981

International Journal of Heavy Vehicle Systems, 2008 Vol.15 No.1, pp.1 - 26

Published online: 25 Apr 2008 *

Full-text access for editors Access for subscribers Purchase this article Comment on this article