Creation of the UK Airspace Design Service to oversee modernisation of the country’s airspace structure is a consequence of the increasing weakness of the model currently used to drive such changes.

The proposal would upgrade Nashville’s airspace from Class Charlie to Class Bravo, giving air traffic controllers a larger area to monitor and manage incoming and outgoing aircraft.

The Federal Aviation Administration has denied a request to upgrade the airspace around Austin-Bergstrom International Airport, a move local leaders and air traffic officials argued would improve ...