This data flow is sent from other highway roadside devices (e.g. another ramp meter controller) and contains operational status (state of the device, configuration, and fault data) for a highway roadside indicator. It is used for coordination between peer roadside indicators or for information transfer between devices functioning in a hierarchical arrangement. It consists of the following data items each of which is defined in its own DDE:

+ device_identity
+ roadside_device_status
+ indicator_response_state}

Sub Data Flows

Parent Data Flows

Associated PSpecs