National ITS Architecture Glossary

The geographical area that identifies the boundaries of the regional ITS architecture and is defined by and based on the needs of the participating agencies and other stakeholders. In metropolitan areas, a region should be no less than the boundaries of the metropolitan planning area.

A specific, tailored framework for ensuring institutional agreement and technical integration for the implementation of ITS projects or groups of projects in a particular region. It functionally defines what pieces of the system are linked to others and what information is exchanged between them.

As part of the Department of Transportation, the Research and Innovative Technology Administration (RITA) has the responsibility for the strategic direction and management oversight of USDOT’s ITS program, including the National ITS Architecture program.

A document of the National Architecture that presents an analysis of potential critical risks that may delay or prevent the deployment of ITS technologies, and recommends mitigation plans which will eliminate or reduce these risks to the deployment process. It is intended for implementers that are involved with the details of ITS deployment in their region, throughout the development of the regional ITS architecture.

A combination of technologies that collects, transmits, models, and disseminates weather and road condition information.A term used in transit operations to describe an operator work assignment.

A term used in transit operations to describe an operator work assignment.