This data flow contains the actual data provided by local roadside equipment to a dynamic message sign (DMS) or other types of signs at the roadside including traffic safety messages such as stopped vehicles ahead, work zones, slippery conditions, etc. It consists of the following data items each of which is defined in its own DDE:

+ list_size{indicator_identity
+ dms_advisory_text
+ lane_dms_controls}

Sub Data Flows

Parent Data Flows

Associated PSpecs/Terminators

Parent Information Flows