indicator_status_from_signals

This data flow provides the operational status (state of the device, configuration, and 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_status
+ device_identity
+ station_id

Sub Data Flows

• device_identity
• roadside_device_status
• station_id

Parent Data Flows

• indicator_fault_state
• traffic_field_equipment_fault_data

Associated PSpecs/Terminators

• 1.2.7.2 - Monitor Roadside Equipment Operation
• 1.2.8 - Collect Traffic Field Equipment Fault Data

Parent Information Flows

• signal control status