This data flow is used within the Manage Traffic function to report to the traffic operations personnel the status of a barrier system, such as gates, barriers, and other automated or remotely controlled systems used to manage entry to roadways. By monitoring this data flow, the receiving process can monitor the health and current status of field equipment. 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