Transforming Air Traffic within the US National Airspace System
The Next Generation Air Transportation System – or NextGen – and its component programs are designed to overhaul air traffic control as we know it and transform the National Airspace System (NAS). 1 Of the four components of NextGen, ADS-B2 (Automatic Dependent Surveillance-Broadcast) is the “cornerstone” that will transform the United States’ air traffic control system from a ground-based surveillance system, which has been in place for the last six decades, to a satellite-based surveillance system using GPS technology. This system will reduce traffic delays, save time and fuel, permit controllers to monitor and manage aircraft with more efficiency and increase capacity. For this report, capacity refers to the number of aircraft managed within the system that keeps pace with the increased demand for flights by users.