Air traffic control (ATC) chooses runway for landing and takeoff based on wind direction and strength. The exact rules for runway selection may vary from airport to airport. Associated with runways at various airports in DCS are radio navigation landing aids such as:   Instrument Landing System (ILS) Non-Directional Beacon (NDB) PRMG Currently DCS decides runway selection for ATC and runway selection for landing aids based on two entirely independent sets of rules. The result is the ru