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This letter responds to Congress's May 10, 2007, request that we address questions submitted for the record related to the May 9, 2007, hearing entitled The Future of Air Traffic Control Modernization.
The nation's current air traffic control system is reaching its capacity limits as demand for air transportation grows. The Next Generation Air Transportation System (NextGen) represents a new system that will use state-of-the-art technologies and procedures.
With the number of airplane passengers using U.S. airports expected to grow to almost 1 billion by the year 2015, ground access to U.S. airports has become an important factor in the development of our nation's transportation networks.