United States Department of Transportation
i
WSDOT Intermodal Data Linkages: Freight ITS Operational Test Evaluation Final Report: Part 2: Freight ITS Traffic Data Evaluation
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2003-01-01
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[PDF-2.58 MB]
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Alternative Title:Washington State Department of Transportation Intermodal Data Linkages
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Abstract:In mid-1999, in response to the U.S. Department of Transportation's request for participation in the Intelligent Transportation Systems (ITS) Intermodal Freight Field Operational Test (FOT) Program, the Washington State Department of Transportation (WSDOT) entered into a partnership with public and private organizations to test and evaluate the following two freight traffic data ITS projects as part of its overall "Intermodal Data Linkages ITS Operational Test": (1) Freight ITS Congestion Management System. This test included an examination of a queue detection system and variable message sign on I-5 approaching the Port of Tacoma, as well as an Internet-based camera system installed at three port terminal roadway approaches at the Port of Seattle to monitor gateway and access road queues. (2) Freight ITS Data Collection. This test looked at vehicle transponders and wireless Global Positioning System (GPS) devices as tools for detailed data collection of regional freight traffic flows. These two tests were conducted in tandem with 17 public and private sector participants. Science Applications International Corporation served as the "Independent Evaluator" for this test. Additionally, the Washington State Transportation Center (TRAC) served as the primary research team for the examination of the use of GPS devices and transponders to support freight traffic data collection. The results of these assessments, along with corresponding conclusions and recommendations, are detailed in this report. Two key conclusions are summarized as follows: (1) The three Port of Seattle cameras experienced approximately 2,000 hits on each camera in July of 2002. These three cameras have become an integrated component of the overall traffic management system in the greater Seattle region. (2) Despite significant data analysis challenges, the use of real-time GPS and transponder data collected from trucks and state systems does show promise as a means for metropolitan planning organizations to collect regional freight transportation data; however, further research and system tests will be needed to develop appropriate methods and tools.
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