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US National ITS Architecture updated to version 7.0; aligned with connected vehicle research program

3 February 2012

Sausage_v61
High-level architecture diagram. The four colored rectangles representing classes filled with smaller white rectangles representing subsystems. all interconnected by straight lines representing communications links going through one of four pink ovals representing types of communications. Click to enlarge.

The US National Intelligent Transportation Systems (ITS) Architecture has been updated to version 7.0. The ITS Architecture provides a common framework for planning, defining, and integrating ITS deployments and reflects the contributions of a broad cross-section of the ITS community and provides a definitive reference for ITS deployment planning, according to the US Department of Transportation (DOT) ITS Joint Program Office (JPO).

As one of the major new additions in version 7.0, the Architecture has been aligned with the US DOT’s connected vehicle research program, including consistent use of connected vehicle terminology.

The National ITS Architecture defines the functions that are required for ITS; he physical subsystems where these functions reside; and the information exchanges that connect these functions and physical subsystems together into an integrated system. Other major new additions to version 7.0 include:

  • An Architecture Use section was added to the website that describes how the architecture is used to support transportation planning, programming, and project development. This new view of the architecture includes planning factors, goals, objectives and strategies that are created through the transportation planning process. Each of these outputs are linked to the service packages in the National ITS Architecture, providing an entry point to the architecture that is oriented to transportation planners and grounded in the transportation planning process.

  • The Architecture has been modified to keep it in alignment with the Federal Motor Carrier Administration’s (FMCSA) Commercial Vehicle Information Systems and Networks (CVISN) 4.0. Several architecture flows and support for FMCSA’s Wireless Roadside Inspection Program were added.

  • Three new service packages were created to support Active Traffic Management: ATMS22: Variable Speed Limits, ATMS23: Dynamic Lane Management and Shoulder User, and ATMS24: Dynamic Roadway Warning.

  • The website has been significantly upgraded, with hyperlinked diagrams, a use page that supports transportation planning, programming and project development, and a new Institutional Layer page.

  • The Architecture has been made more consistent with the ITS Architecture for Canada version 2.0. This includes the addition of APTS11: Multimodal Connection Protection and ATMS26: Mixed User Warning Systems.

  • Support for alternative pricing of roadways, including vehicle-miles-traveled (VMT) plans, was added with ATMS25: VMT Road User Payment.

Resources

  • >Key Concepts of the National ITS Architecture

February 3, 2012 in Connected vehicles, Intelligent Transportation Systems (ITS) | Permalink | Comments (0) | TrackBack (0)

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