United States Department of Transportation
i
CAVC Classification [Continuous Automatic Vehicle Classification] System
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1997-06-30
[PDF-2.18 MB]
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Alternative Title:CAVC Classification [Continuous Automatic Vehicle Classification] System. PENNDOT Partnership. Project Task 39: Automatic Traffic Data Collection System Modernization.
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Abstract:One of PennDOT's long-term objectives was to develop a comprehensive and integrated data management process. This objective presented several challenges: weigh-in-motion (WIM) data were not utilized in Pennsylvania, and there are operational difficulties with some of the permanent systems: one system is a strategic highway research program (SHRP) site. In addition, the portable systems are rapidly deteriorating, requiring replacement in the near future. Pennsylvania has begun securing continuous automatic vehicle classification (CAVC) data by installing equipment at 6 of the 19 portable WIM sites. In addition, reliability problems with the axle-sensing components of the system are a major concern. Recognizing that data management is a primary component in any system, Pennsylvania initiated the design of a database for CAVS data in Paradox. Because of the desirability of merging data from 19 CAVC sites with data from 60 automatic traffic recorder (ATR) sites, PennDOT wanted to convert the ATR database from IBM to Paradox. To meet this objects, MAUTC assisted PennDOT with the tasks of reviewing vehicle classification technology and recommending a course of action.
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