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1.1.4.1: Retrieve Traffic Data

This process shall distribute traffic data, roadway network data, and environmental sensor data to other functions within ITS and to other terminators on the boundary of the architecture. The process shall retrieve data from the data stores managed by other processes in the Provide Traffic Surveillance facility of the Manage Traffic function. The process shall respond to requests for data that originate from traffic operations personnel, the Manage Transit function, the Manage Emergency Services function, the Manage Demand facility within the Manage Traffic function, and the Provide Driver and Traveler Services function. Upon request from the operator, this process shall request data from the Manage Archived Data function to support the operational needs of the Manage Traffic function. When received, this archive data product shall be forwarded to the operator and to other functions within Manage Traffic, including Manage Travel Demand and Provide Device Control. The process shall provide environmental sensor data to the Manage Maintenance and Construction function as well as the Weather Service and Surface Transportation Weather Service terminators. The process shall also generate traffic data for output by other processes to in-vehicle signage functions.

This process is associated with the Traffic Management Center physical object.

This process is associated with the following application objects:

• TMC Dynamic Lane Management and Shoulder Use
• TMC Environmental Monitoring
• TMC Incident Dispatch Coordination/Communication
• TMC Infrastructure Restriction Warning
• TMC Regional Traffic Management
• TMC Signal Control
• TMC Traffic Information Dissemination
• TMC Traffic Surveillance

This process is associated with the following data flows:

• asset_restrictions_for_traffic - In
• current_data_for_output - In
• current_highway_network_state - Out
• current_incidents_data_for_transit - Out
• current_road_network_state - Out
• disaster_network_status_from_traffic_to_m_and_c - Out
• environmental_data_for_commercial_vehicles - Out
• environmental_sensor_data_from_traffic_management - Out
• hov_lane_restriction_data - In
• long_term_data_for_output - In
• network_and_device_inventory - In
• network_status_from_traffic_for_disaster - Out
• network_status_from_traffic_for_evacuation - Out
• operator_log_for_traffic_data - Out
• predictive_model_data - In
• request_traffic_operations_data - In
• retrieved_traffic_media_data - Out
• retrieved_traffic_operations_data - Out
• reversible_lane_restriction_data - In
• road_network_info_from_traffic - Out
• roadside_traffic_data_collection_configuration - Out
• roadway_detours_and_closures_for_traffic - In
• roadway_info_traffic_data - Out
• tifd-traffic_data_for_intermodal_freight - Out
• traffic_archive_data_product - In
• traffic_archive_data_product_request - Out
• traffic_data_demand_request - In
• traffic_data_deployment_request - In
• traffic_data_for_commercial_vehicles - Out
• traffic_data_for_demand - Out
• traffic_data_for_deployment - Out
• traffic_data_for_em_response - Out
• traffic_data_for_emergency_services - Out
• traffic_data_for_emissions - Out
• traffic_data_for_strategy - Out
• traffic_data_for_transit - Out
• traffic_data_for_traveler - Out
• traffic_incident_data - Out
• traffic_performance_measures - Out
• traffic_road_weather_data - Out
• traffic_road_weather_data_for_emissions - Out
• traffic_video_for_mcm - Out
• traffic_video_for_transit - Out
• traffic_video_for_traveler - Out
• tstws-env_sensor_data_from_traffic - Out
• tws-env_sensor_data_from_traffic - Out