This data flow is used within the Manage Traffic function as a means of transferring current vehicle emissions data from the Manage Emissions facility to the Provide Device Control facility. It contains data about the current levels of emissions being output by a vehicle or messages pertaining to emissions zones and is for output to vehicle drivers. The data flow consists of the following data items each of which is defined in its own DDE:

+ vehicle_emissions_message_for_roads

Sub Data Flows

Parent Data Flows

Associated PSpecs