期刊名称：Journal of Aviation/Aerospace Education & Research
印刷版ISSN：1065-1136
电子版ISSN：2329-258X
出版年度：2002
卷号：12
期号：3
页码：4
出版社：Embry-Riddle Aeronautical University
摘要：The U.S. Air Traffic Control (ATC) system is one of the most complex structures in the world. The mission of the ATC system is to the safe, orderly, and expeditious flow of air traffic in the U.S. National Airspace System (NAS). The ATC system is composed of a vast network of surveillance systems, automated data processing systems, communications equipment, navigation systems, and ATC facilities (Government Accounting Office [GAO], 1998).
