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Abstract
The statewide ITS architecture of Montana DOT was initially developed in 2005. The main ITS goal areas for the state include enhanced traveler safety, coordinated maintenance and construction activities, effective traffic and transit management, coordinated incident management, enhanced commercial vehicle operations; and improved traveler information. In this updated version of the architecture, the FHWA guidelines were significantly implemented to include completed planning efforts in the state and based on the national Architecture Reference for Cooperative and Intelligent Transportation (ARC-IT 9.0). ARC-IT combined services from the national ITS architecture and the connected vehicle reference implementation architecture and reorganized the ITS service areas and service packages. 52 Service Packages and Service Package Instances were identified for the MDT statewide architecture comprising the agencies, devices, and information flows needed to achieve each ITS service. For this architecture development, a 15-year planning horizon was decided. Potential agency agreements were identified based on probable information flows, access sharing, and funding partnerships. Also, to emphasize the architecture's connection with other state transportation planning efforts, selected service packages from the architecture were linked to specific goals and strategies from TranPlanMT; these service packages can help MDT achieve its identified goals and strategies.
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