posted on April 08, 2013 13:15
In 1990, the FAA developed a complicated cost-benefit methodology for the tower program that relies on accident data from 1983 to 1986 to determine how many accidents would be averted and lives saved if an airport had controllers working onsite. As the years have passed, the FAA has updated some of the economic assumptions used in the methodology. The safety data, however, has never been updated.
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