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Freight railroads account for over 40 percent (by weight) of the nation's freight on a privately owned network that was largely built almost 100 years ago and includes over 76,000 railroad bridges and over 800 tunnels.
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.
This testimony discusses the Federal Aviation Administration's (FAA) efforts to modernize the nation's air traffic control (ATC) system and its relationship to other initiatives to address the escalating crises of insufficient capacity facing the aviation industry.