Robert W. Schwab

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The air transport industry is developing a new operational concept for the Air Traffic Management (ATM) system. This operational concept involves substantial changes to airplanes and ground systems with the introduction of new satellite-based technologies. The current mature ATM systems, based on ground navigational aids, radar, and voice communications,(More)
This paper describes an approach to developing an operational concept for the US National Airspace System. This approach carefully ties the system mission, the functions that the system must perform and the available resources, and presents a logical functional structure for the overall system that ties together functions, resources and subsystems. A key(More)
This paper evaluates benefits to be expected from an early use of Time Navigation (TNAV) capabilities now under engineering development for Flight Management Computer Systems (FMS) operating in the U.S. into airports where En Route Metering (ERM) is currently operational or is scheduled to become operational. The benefits estimates are based on the ability(More)
As the demands on the National Airspace System (NAS) have grown, and the systems have become more complex, the ability to make successful modernization decisions has become problematic. The future development of the U.S. air transportation system will require wise investment decisions with clear criteria and metrics. Systems engineering tools and processes(More)
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