Use in Project DevelopmentThe regional ITS architecture provides context for ITS projects. By using the regional ITS architecture, the steps taken by each project will be on the path to the larger objectives set forth in the long range transportation plan.
Architecture UseA well-maintained regional architecture can provide a tool for making a strong initial start in doing the systems engineering for a project. Regional ITS architecture content such as the stakeholders, their roles and responsibilities (included in the operational concept), and the list of agreements supports the project concept of operations. The functional requirements are high-level requirements that can support system requirements development, and the interfaces and ITS standards support project design. In addition to assisting project implementers in the preliminary engineering stage, planners may also benefit from participating in the conceptual development of projects and strategies prior to the start of the formal project development. These components can inform creation of project documents, including RFPs, and architectural details can inform the project's scope of work.
The items from the regional ITS architecture that are used to jumpstart the systems engineering process are derived from the National ITS Architecture using the Turbo Architecture software. The subsystems and terminators used to define the inventory elements, equipment packages and functional requirements, architecture flows used to define the interfaces, and related ITS standards are all derived from the National ITS Architecture definition. More information on how the regional ITS architecture can be used to support systems engineering is included in the Systems Engineering for ITS Handbook, and the Systems Engineering Guidebook for ITS.