ATIS06-Transportation Operations Data Sharing Transaction Set Diagram



Get the Source Graphic, a Windows Metafile (WMF), in ZIP format.
More about ZIP files

The following discusses how the National ITS Architecture provides the transportation service described by this service package. Each numbered item describes the operation of that portion of the service package identified with the corresponding number on the transaction set diagram.

Note that this transaction set diagram (TSD) is only 1 of the 2 TSDs and so only a portion of the numbered items below refer to the above TSD.

ATIS06 transaction set diagrams: 1 2 Next TSD

  1. The entire process is under the asynchronous monitoring (ISP operations information presentation) and control (ISP operator inputs) by the ISP Operator.

  2. Concurrently and asynchronously, information is collected by the ISP from a variety of sources:

    • Traffic Management Subsystem (road network conditions)

    • Transit Management Subsystem (transit and fare schedules), which includes static schedule and fare information and transit schedule adherence information, which includes real-time transit schedule performance information, and transit incident information.

    • Emergency Management Subsystem (incident information), including incidents arising from large-scale natural or human-caused disasters

    • Emissions Management Subsystem (air quality information)

    • Maintenance and Construction Management Subsystem (current asset restrictions), (maint and constr work plans), (roadway maintenance status), and (work zone information)

    • Parking Management Subsystem (parking information)

    • Toll Administration (toll data)

    • Border Inspection Systems (border crossing status information)

    • Event Promoters (event information)

    • Media (external reports), which include traffic or incident information collected by the media

    • Surface Transportation Weather Service (transportation weather information)

    • Weather Service (qualified environmental conditions data and weather information)

    • Other (ISP coordination), which provides for multiple ISPs exchanging information from separate sources for purposes of augmenting the broadcast information or corroborating specific information items

    This information is often based upon exceptional conditions, such as an incident in traffic, a storm, or other special events. Information collected by the ISP from some sources may come as the result of a specific request or be obtained through subscriptions. Specific requests include (parking lot data request), (toll data request), (event information request), and (transportation weather information request). With subscriptions, providers usually send periodic updates on a scheduled basis.

  3. The ISP manages a real-time information repository that provides current information about the regional transportation system to transportation operators in the region. The information provided to each operator may be tailored based on individual requests or subscriptions (not shown in the architecture) or incremental real time updates could be pushed to operators as conditions change. The following transportation centers receive real-time transportation information:

    • Maintenance and Construction Management (transportation information for operations)

    • Traffic Management (transportation information for operations). For specific demand management applications, this subsystem may also receive fare and price information from the ISP (see ATMS09: Traffic Forecast and Demand Management).

    • Fleet and Freight Management (road network conditions and incident information). Commercial transportation operators in the region may also receive more focused regional transportation information suitable for commercial fleets.

    • Transit Management (transportation information for operations)

    • Emergency Management (transportation information for operations)

  4. Operations personnel in each of the regional centers receive the operational data that was distributed by the Information Service Provider. Each of the receiving centers processes the received information and provides information as requested by the operator. Each operator may also provide commands that controls the information that is retrieved and presented:

    • Maintenance and Construction Center Personnel (maint and constr center personnel inputs and maint and constr operations information presentation)

    • Emergency System Operator (emergency operations inputs and emergency operations status)

    • Traffic Operations Personnel (traffic operator inputs and traffic operator data)

    • Transit System Operator (transit operations personnel inputs and transit operations status)