FAA International Flight Test Demonstration Takes Off | Federal Aviation Administration

Using Trajectory Based Operations (TBO), countries shared the aircraft's trajectory, and air traffic experts from each country sequenced the flights' routes to achieve the optimal flight path across multiple regions. Controllers factored in conditions such as weather, air traffic and airspace closures. 

 

TBO uses precise aircraft trajectory data (latitude, longitude, altitude and time) to show where the aircraft expects to be on its route from takeoff to touchdown. Aircraft fly precise flight paths with seamless information exchange between air and ground systems. 

https://www.faa.gov/newsroom/faa-international-flight-test-demonstration-takes