Installing permanent in-pavement weigh-in-motion (WIM) stations on local roads is very expensive and requires
recurring costs of maintenance trips, electricity, and communication. For county roads with limited average daily
traffic (ADT) volume, such a high cost of installation and maintenance is rarely justifiable. One solution to bring
WIM technologies to local roads is to utilize a portable WIM system, much like pneumatic tube counters used in
short-duration traffic counts. That is, a single unit is reused in multiple locations for few days at a time. This way,
WIM data is obtained without the cost of permanent in-pavement WIM stations. This report describes the results of
a two-year research project sponsored by the Minnesota Department of Transportation (MnDOT) to develop a
portable WIM system that can be readily deployed on local roads. The objective of this project was to develop a
portable WIM system that would be used much like a pneumatic tube counter. The developed system is battery
operated, low cost, portable, and easily installable on both rigid and flexible pavements. The report includes a sideby-
side comparison of data between the developed on-pavement portable WIM system and an in-pavement
permanent WIM system.
Department of Electrical and Computer Engineering; Northland Advanced Transportation Systems Research Laboratories; University of Minnesota Duluth
Kwon, Taek M..
Development of a Weigh-Pad-Based Portable Weigh-In-Motion System.
Minnesota Department of Transportation.
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INTRODUCTION: Rising obesity rates are a threat to the American public's health. To date, however, few studies have used an environment focused weight gain prevention intervention approach, which is arguably more appropriate ...
Kwon, Taek M. (Minnesota Department of Transportation, 2016-02)
A complete portable weigh-in-motion (PWIM) system consists of a pair of weigh-pads (one for upstream and the other for downstream), a controller which translates raw load signals to WIM data, and an optional external battery ...
Liao, Chen-Fu; Davis, Gary A. (Intelligent Transportation Systems Institute, Center for Transportation Studies, University of Minnesota, 2012-08)
Many state departments of transportation have been collecting various traffic data through the Automatic Traffic
Recorder (ATR) and Weigh-in-Motion (WIM) systems as outlined in the Traffic Monitoring Guide (TMG)