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Edition:Final report; April 2002-March 2005
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Abstract:The Arizona Department of Transportation (ADOT) maintains a variety of independent applications to monitor roadway
conditions and activities across the state including traffic counts, weather data, signal timing, Variable Message Sign (VMS)
advisory messages, video signals, and statewide Highway Condition Reporting System (HCRS) events. Each ITS field
device has its own proprietary device driver application and output data stream format.
This report summarizes an Intelligent Transportation Systems (ITS) research program by ADOT to consolidate statewide
user workstation access to a subset of the various ITS field devices via a “single-screen.” The implementation of this ability
involved the development of software interfaces with device driver applications via the Internet and intranet. This resulted in
the centralization and improved availability and archiving of traffic data derived from the associated ITS field devices, as well
as data from the Advanced Traveler Information System (ATIS) via the HCRS. This outcome improved the real-time aspect
of the operational management of the state highway system. Ultimately, the driving public will be able to plan their travel with
more consistent, reliable and timely information via the Internet, and access this real-time information en route via the 511
Interactive Voice Response system (IVR).
A second project phase introduced a graphical interface to HCRS to automate location information and improve data entry
accuracy for field operations staff.
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