The Automatic Dependent Surveillance-Broadcast (ADS-B) is a cooperative surveillance technology in which an aircraft determines its position via satellite navigation and broadcasts it periodically, thereby enabling the tracking of the aircraft.

Europe is being confronted with the most significant influxes of migrants and refugees in its history.

One burning issue is the lack of timely information on migration trends, flows and rates. Such information gap could be bridged through an holistic approach based on the collection, analysis and integration of any relevant direct and indirect indicators of migration flows.