The major failure of air-traffic control yesterday was yet another sign that our outdated radar-based system needs to be replaced with a sleek new satellite-based one, right? That’s the logical progression of much of the coverage out there.
The reality is that, yes, the system needs to be replaced. But yesterday’s failure was a high-tech one that could afflict a system based on satellites, too.
The problem wasn’t directly related to radar, but with the National Airspace Data Interchange Network, a system for processing flight plans and information for all flights in the country. It failed in both of its locations: Salt Lake City and Atlanta. This meant that automated regional FAA systems couldn’t process flight information. As a result, controllers had to enter information manually. This caused delays that rippled across the country. “A satellite-based system would have had the same problem,” R. John Hansman, an MIT aerospace and air traffic control expert, wrote to me this afternoon.
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