| 释义 |
significant point significant pointA specified geographical location used in defining an ATS (air traffic services) route or the flight path of an aircraft and for other navigation and other ATS purposes (ICAO). These significant points should be established, where possible, with reference to radio navigational aids, preferably VHF (very high frequency) or higher frequency aids. If no radio navigational aids are available, a significant point should either be visually recognizable or determinable by self-contained airborne navigational aids. Specific points may be designated as “transfer of control” points by agreement between adjacent air traffic control units or the control position concerned. A significant point is designated in plain language and is named with reference to an identifiable and preferably prominent geographical location. |