摘要: The NAS System Requirements Specification (NASSRS) is a compilation of requirements which describe the operational capabilities for the National Airspace System (NAS) as the NAS is envisioned to exist by the year 1995. In that con... 展开 The NAS System Requirements Specification (NASSRS) is a compilation of requirements which describe the operational capabilities for the National Airspace System (NAS) as the NAS is envisioned to exist by the year 1995. In that context, it includes those existing and transitional capabilities that will also exist in the 1995 system. It is intended primarily for use as an internal FAA management tool to support the NAS design, engineering, and acquisition activities and to manage and control change to the NAS. The document provides a ground-based systems representation of the proposed operational capabilities planned for the NAS. As programs and subsystems are developed and implemented the capabilities they provide will be compared to this document as a measure of success of NAS Plan Implementation. Contents: Overview; Flight Planning; Traffic Control and Airspace Management; Monitoring; Navigation; Air Defense and Law Enforcement Surveillance; Aircraft Detection and Identification; Communications; Maintenance and Support: System Effectiveness. 收起