This data flow is used within the Manage Emergency Services function and contains the data produced by processing audio data from surveillance systems. It is analyzed and used to detect potential threats on-board a transit vehicle. The data flow consists of the following data items each of which is defined in its own DDE:

list_size + list_size{transit_vehicle_identity
+ surveillance_device_type_identity
+ secure_audio_data}

Sub Data Flows

Parent Data Flows

Associated PSpecs