This data flow requests that an alert be issued based on the information received from existing emergency centers receiving emergency calls pertaining to a major emergency such as a natural or man-made disaster, civil emergency, or child abduction to be displayed to travelers. It consists of the following data items each of which is defined in its own DDE:

list_size + list_size{alert_type
+ alert_severity
+ geographical_area
+ alert_duration}

Sub Data Flows

Parent Data Flows

Associated PSpecs