This data flow contains actual sensor readings collected from intrusion or motion detection sensors located in secure areas frequented by travelers during normal operational hours, but typically empty during off-hours, including transit stops, rest areas, travel information centers, etc. It consists of the following data items each of which is defined in its own DDE:

list_size + list_size{station_id
+ sensor_identity
+ intrusion_motion_sensor_data_collected}

Sub Data Flows

Parent Data Flows

Associated PSpecs