This data flow contains the actual data from which instructions to the driver and traveler can be produced by indicators at dynamic message signs (DMS), highway advisory radios (HAR), or in-vehicle signage at the roadside to display the status of a barrier system (e.g. open, closed). It consists of the following data items each of which is defined in its own DDE:

list_size + list_size{indicator_identity
+ dms_advisory_text
+ lane_dms_controls}

Sub Data Flows

Parent Data Flows

Associated PSpecs/Terminators