Final Approach Spacing Tool

The last of the CTAS tools, which can work independently but is more efficient when integrated into the full CTAS suite, is the Final Approach Spacing Tool. It assists the TRACON controllers to determine the most efficient sequence, schedule, and runway assignments for aircraft intend­ing to land. FAST takes advantage of information provided by the TMA and EDA tools in making its assessments and displaying advisories to

the controller, who then directs the aircraft as usual by radio communi­cation. FAST also makes its determinations by using live radar, weather and wind data, and a series of other static databases, such as aircraft performance models, each airline’s preferred operational procedures, and standard air traffic rules.[271]

Early tests of a prototype FAST system during the mid-1990s at the Dallas/Fort Worth International Airport TRACON showed imme­diate benefits of the technology. Using FAST’s runway assignment and sequence advisories during more than 25 peak traffic periods, control­lers measured a 10- to 20-percent increase in airport capacity, depend­ing on weather and airport conditions.[272]