This data flow is used to relay an advanced automatic crash notification (AACN) message from one vehicle to the roadside for forwarding on to a responding center for dispatching and response. This consists of the following items each of which is defined in its own DDE:

+ relay_number
+ relay_vehicle_id
+ relay_vehicle_location
+ time

Sub Data Flows

Parent Data Flows

Associated PSpecs

Parent Information Flows