This data flow is used within the Manage Traffic function as a means of transferring historical pollution data from the Manage Emissions facility to the Provide Traffic Surveillance facility. It contains data about the historical levels of pollution obtained from the store of pollution data in the area covered by the Traffic Management Center (TMC) and consists of the following data items each of which is defined in its own DDE:

+ list_size
+ list_size{historical_pollution_state_roadside_collection}

Sub Data Flows

Parent Data Flows

Associated PSpecs