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Departments of Transportation depend considerably on communications between Intelligent Transportation Systems (ITS) field devices and Transportation Operations Centers (TOC). The future of transportation operations is expected to grow beyond just fixed devices to incorporate vehicle-to-vehicle and vehicle-to-roadside wireless communications. The interaction between vehicles, roadway management and critical roadway infrastructure will play a major role in the new national paradigm of cyber-physical systems (the integration of computation with physical processes). Wireless communications will be the fabric that ties together these major subsystems.
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