This data flow contains the operational status of barrier systems, such as gates, barriers, and other automated or remotely controlled systems used to manage entry to roadways. This flow is used to archive occurrences of barrier activation. It consists of the following data items each of which is defined in its own DDE:

list_size + list_size{station_id
+ device_identity
+ roadside_device_status}

Sub Data Flows

Parent Data Flows

Associated PSpecs