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Title: Impact of Railcar Weight Changes on Wisconsin Bridges
Project ID: 0092-05-13
Publication Date: October 2006
Investigator: Westbrook Associated Engineers, Inc., and E80 Plus Constructors, LLC 
WisDOT Contact: Frank Huntington  
Final report (1.4 MB)
Research Brief (306 KB)
This study evaluated a representative sample of Wisconsin rail bridges to determine which bridges need rehabilitation or maintenance to accommodate heavier freight cars. The researchers used the inspection results to project maintenance needs for bridges across the state, which will help the department prioritize bridge rehabilitation based on bridge design, bridge type, and repair type.

Title: Improved Use of the Inspection Selection System (ISS) for Motor Carrier Safety
Project ID: 0092-00-02
Investigator: Robert Smith, University of Wisconsin-Madison
WisDOT Contact: Sandra Huxtable
Final report, January 2002 (85 KB)
Research Brief (1.5 MB)  This file may require a lengthy download time.
Implementation plan (27 KB)
The Inspection Selection System (ISS) initiated by the Federal Highway Administration in the early 1990s makes it easier for states to identity trucks belonging to carriers with poor past performance on inspections. However, the ISS only operates on interstate highways and with commercial vehicles carrying a U.S. Department of Transportation number. This project aims to develop an intrastate inspection selection system for targeting Wisconsin trucks that are likely to be in violation and a methodology for ranking Wiconsin intrastate carriers for compliance review.

Title: When to Apply Spring Load Limits?
Project ID: 0092-45-70
WisDOT Contact: Tom Martinelli
Research Brief (129 KB)
Available methods for determining the timing of spring weight restrictions include the FHWA temperature method, frost tubes, pavement and subsurface temperature probes and first-hand observation. This research assesses the effectiveness of these techniques and develops a more objective approach using an Excel computer program that calculates equivalent damage load (EDL) for a given road 30, 60, 90 or 120 days into the future based on user-supplied average daily temperatures experienced in the year to date.

Title: Design & Prototype: Automated Routing & Evaluation of Bridge Restrictions for Oversize/Overweight Permitting
Project ID: 0092-45-19
Investigator: Teresa Adams, University of Wisconsin-Madison
WisDOT Contact: Stan Woods
Final report, May 2002 (1.2 MB) This file may require a lengthy download time.
Research Brief (274 KB)
Implementation plan (26 KB)
This project focuses on developing an Intelligent Transportation System/Commercial Vehicle Operator application for oversize/overweight route permitting. By merging enterprise databases across major organizational divisions, the system should improve efficiency and service to commercial vehicle operators.

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Last modified: January 31, 2007