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Application Areas
Application areas are deployment-oriented categories that focus on commonly
deployed ITS
services or systems. Application areas provide a starting point for identifying
the ITS standards and other resources (e.g., case studies, lessons learned)
that may be relevant to a specific type of deployment.
System Types
The National ITS Architecture is divided into interface classes, which are further subdivided into application areas. Interface classes are defined by the type of system at each end of the communications path: center, field, vehicle, and traveler. An application area within the center-to-field interface class would include bidirectional communication between a center-type system (e.g., traffic management center) communicating with a field-type system (e.g., roadway equipment).
To determine which standards may be applicable, first identify the interface class
for which you are looking for a standard, then find the application area within
that interface class that best describes the project component. Use the table
below to learn more about application areas and associated standards. |
ITS projects will relate to one or more application area. Note that not all
possible application areas in the National ITS Architecture are included in the
table above. This is because not all application areas are currently represented
by an approved or published ITS standard. As additional ITS standards become
available, more application areas will be added to the table.
During the initial phases of a deployment, decisions should be made regarding:
- The specific architecture flows from the National ITS Architecture to be implemented, and the corresponding ITS standards mapped to those flows
- The specific communications protocols to be used in the deployment, and corresponding NTCIP standards
- The specific types of messages to be used in the deployment
Contact your local FHWA
ITS division specialist or an
ITS Standards Program Field Support Team contact for additional help.
ITS Standards Application Areas Table
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