摘要: This report documents the proceedings of a Federal Aviation Administration (FAA) public workshop on Alternative Separation Concepts during January 7-9, 1981. The first day was devoted to presentations describing FAA/NASA ongoing p... 展开 This report documents the proceedings of a Federal Aviation Administration (FAA) public workshop on Alternative Separation Concepts during January 7-9, 1981. The first day was devoted to presentations describing FAA/NASA ongoing programs to improve the ATC system with an emphasis on those aspects which would directly improve the services offered to pilots. These improvements would primarily ease the entry into and exit from the IFR system, and the accommodation of pilot preferred routings. The second and part of the third day were devoted to participant discussions which are unrecorded. There were three working groups, technical, procedural and economic which reported their recommendations at the close of the workshop. The participants at the workshop did not identify a fundamentally new concept for air traffic control. They concluded that it would be desirable to continue development of existing and planned Secondary Surveillance Radar-based systems. The promising approaches to system improvements to permit a greater degree of freedom of GA operations were classified by the availability of surveillance services. Within ground-based surveillance coverage, and automatic ground-based primary separation service was the recommended approach. Outside of surveillance coverage, an airborne-based primary separation service utilizing the signal format of the improved secondary surveillance radar system was recommended for further development. (Author) 收起