Simulation of MLS-ATC Procedures in the New York and San Francisco Terminal Control Areas 892217

Two recent simulation studies examined the use of the Microwave Landing System (MLS) in the terminal area environment. In the first study, using models of the New York Terminal Areas, multiple scenarios involving Instrument Landing System (ILS) and MLS capabilities were simulated to evaluate air-traffic-control (ATC) procedures and to identify future efforts needed to ensure that ATC personnel will be able to facilitate the use of the MLS. The test disclosed several procedural issues that require further study and showed that an all-MLS environment significantly reduced controller workload. The second study examined MLS procedures for the San Francisco (SFO) Terminal Area and explored the operational feasibility of an offset azimuth radial approach to SFO runway 28R using basic mode MLS avionics.


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