This data flow is used within the Manage Emergency Services function and contains surveillance data collected from secure areas, including those frequented by travelers (transit stops, rest areas, park and ride lots, on-board transit vehicles, etc.) as well as those secure areas typically away from travelers (tunnels, bridges, roadway infrastructure, etc.) for evaluation as a possible incident. Surveillance data includes video images and audio, as well as data produced by processing the surveillance data. It consists of the following items each of which is defined in its own DDE:

list_size + list_size{station_id
+ transit_vehicle_identity
+ surveillance_device_type_identity
+ secure_video_image
+ secure_audio
+ secure_area_images
+ secure_video_image_data
+ secure_audio_data}

Sub Data Flows

Parent Data Flows

Associated PSpecs