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U of MNUniversity of Minnesota
Center for Transportation Studies

Development of a Weigh-Pad Based Portable WIM System

Principal Investigator:

Taek Kwon, Professor, UMD-Electrical Engineering

Project Summary:

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 a 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 use 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 two-year research project sponsored by the Minnesota Department of Transportation (MnDOT) explored the development of 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. Rsearch results include a side-by-side comparison of data between the developed on-pavement portable WIM system and an in-pavement permanent WIM system.

Sponsor:

Project Details:

  • Start date: 12/2008
  • Project Status: Completed
  • Research Area: Transportation Safety and Traffic Flow
  • Topics: Freight, Trucking
  • Phased Project(s):

Reports or Products: