Functional Requirements

In some cases, current ITS projects in the Bay Area have existing documentation of the functional requirements used to design and/or procure their systems or project components.  In the cases where project sponsors have provided this documentation, they are posted along with a brief description of what is defined in the attached documentation.  It is important to note that this compilation does not necessarily represent the 'as-built' list of functionality of these projects, nor does it represent the requirements of future project partners in connecting or coordinating with these projects.  These documents are provided as examples for other project sponsors within and outside the Bay Area.  For more information about the specific 'as-built' functionality of or details on how to connect to or become a partner of one of these current and evolving projects, please contact the project sponsors for current documentation and/or clarification.  Bay Area Examples of Current Projects can be found here.

Sample Functions of Typical ITS Projects

Planning and design of ITS projects requires a clear and concise description of what the projects will accomplish when implemented. The sample functional requirements in the Bay Area ITS Architecture can provide the stakeholders with a tool to assist in defining the high-level goals, objectives, and required functions of ITS projects of different categories.  The functional requirements provided in this Architecture can be used as a tool to develop actual requirements for projects that meet the specific needs of the project sponsors.

When conducting design and preparation of procurement of documents, the stakeholders should refer to the high-level functional requirements and examine the detailed functional description provided by the National ITS Architecture in the context of each project’s specific objective to develop specific functional requirements that reflect the needs of the corresponding stakeholders. Project sponsors may choose to add these requirements to their projects in order to further regional goals and supplement the project-level requirements.  The sample functions provided in this section are not requirements to be placed on projects or project sponsors.

More information regarding the development of specific functional requirements for ITS Projects can be found at http://ops.fhwa.dot.gov/its_arch_imp/guidance.htm

Sample functions are provided for project types in the following categories:

Archived Data Management Systems

Public Transportation Systems

Traveler Information Systems

Traffic Management Systems

Emergency Management Systems

Maintenance & Construction Management Systems