Candidate Architecture Flows for Future Standardization

Many new architecture flows were created to support the most recent version of the National ITS Architecture, most of which are candidates for standardization. Additionally, there are a number of architecture flows from the previous version of the Architecture that have not yet been addressed by standardization groups. Although proper definition of the lower communications layers (protocols) is important to the overall standardization of the interfaces, the contents of the National ITS Architecture primarily provides assistance in the standardization of the actual information exchanged (called objects, data elements, and messages) between ITS systems.

The architecture flows in the National ITS Architecture that are candidates for future standardization have been separated into standards development categories to assist in their standardization. In some cases, a given architecture flow may be assigned to multiple standardization categories (and indicated by the symbol). Standards development organizations that wish to standardize such a flow should coordinate with the other organizations to ensure the creation of a common definition and thereby facilitate interoperability.

Standards Development Categories

Following is a list of the standards development categories to which candidate architecture flows have been assigned. Follow the category link to view the list of architecture flows.

• Advanced Traveler Information Systems (ATIS)
• Archived Data Systems Communications
• Commercial Vehicle Operations
• Connected Vehicle Communications
• Dedicated Short Range Communications
• Incident Management Communications
• Maintenance and Construction Communications
• Rail Operations Communications
• Traffic Management Center-to-Center Communications
• Traffic Management Center-to-Field Communications
• Transit Communications
• VMT Road User Payment