6.6.2.2: Provide Vehicle Route Calculation Data

This process shall fuse link and queue data received from various sources and provide the processed data about links (speed or travel times) and queues to other centers and broadcasted to vehicles (to support autonomous route guidance with dynamic link updates). The input data to be fused shall be obtained from sources within the Manage Traffic function, probe data from vehicles under infrastructure-based route guidance, or with probe data obtained from other sources (such as an electronic toll collection systems). This process shall update the data stores used by another process to calculate vehicle routes. The process shall obtain route segment data upon request or at periodic intervals from other ITS functions. The process shall request data about route segments outside its own geographic area by sending a data request to the process that provides the interface with other transportation information centers (TICs). Link information from other TICs shall be stored by this process in the link_data_store. Usage of current road networks shall be sent to the Manage Maintenance and Construction function and the data archival process.

This process is associated with the Transportation Information Center physical object.

This process is associated with the following functional objects:

• TIC Trip Planning

This process is associated with the following data flows:

• request_other_route_segment_data
• request_route_segment_data
• route_segment_details_updated
• current_road_network_use
• current_road_network_use_for_archive
• link_and_queue_data
• other_route_segment_data
• route_segment_use_prediction
• traffic_data_for_route_guidance
• traffic_data_request_from_route_guidance