Air traffic control systems in operation
today are ground-based, using technology that dates back to the 1960’s.
Satellite-based control systems allow air traffic controllers to be more
efficient. The U.S. is currently working on NextGen, a satellite-based air
traffic control system that is being implemented in stages through 2025. GPS
technology will be used to increase accuracy and shorten routes. NextGen is
expected to save time and fuel, reduce air traffic delays, increase flight
capacity and permit air traffic controllers to monitor aircraft with improved