National ITS Architecture

Architecture Layers Diagram

The National ITS Architecture provides a common framework for planning, defining, and integrating intelligent transportation systems. It is a mature product that reflects the contributions of a broad cross-section of the ITS community (transportation practitioners, systems engineers, system developers, technology specialists, consultants, etc.).

The architecture defines:

  • The functions (e.g., gather traffic information or request a route) that are required for ITS
  • The physical entities or subsystems where these functions reside (e.g., the field or the vehicle).
  • The information flows and data flows that connect these functions and physical subsystems together into an integrated system.

If you would prefer a summary document that you can print and read over coffee, a brief document is available that presents the key architecture concepts.

National ITS Architecture News

March 2015
Systems Engineering Tool for Intelligent Transportation (SET-IT) version 1.1 is available as a free download. Read more...

February 2015
Web-based Training Material for the Systems Engineering Tool for Intelligent Transportation (SET-IT) software is available. Read more...


What's New In Version 7.0

Version 7.0 of the National ITS Architecture includes a host of new features that enhance the architecture definition and make it easier for you to access the information that you need. The architecture will continue to evolve as new user services are developed, standards activities progress, and more and more ITS implementations put the architecture into action.

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