indicator_faults_from_signals (Data Flow*)

This data flow provides the fault data of an indicator used on a surface street for the Manage Traffic function. This data flow shows that an indicator has developed a fault and is therefore operating incorrectly. The fault will have been found by a process that is local to the indicator itself. The data flow consists of the following data items each of which is defined in its own DDE: roadside_device_fault + device_identity + station_id

Sub Data Flows

Parent Data Flows

Pspecs*

Parent Architecture Flows: