时间：2011-04-18 00:52来源：蓝天飞行翻译 作者：航空 点击：次
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(See AIRPORT TRAFFIC CONTROL SERVICE.)(See APPROACH CONTROL FACILITY.)(See APPROACH CONTROL SERVICE.)(See MOVEMENT AREA.)(See TOWER EN ROUTE CONTROL SERVICE.)(See ICAO term AERODROME CONTROL TOWER.)(Refer to AIM.)TOWER EN ROUTE CONTROL SERVICE. The control of IFR en route traffic within delegated airspace between two or more adjacent approach control facilities. This service is designed to expedite traffic and reduce control and pilot communication requirements. TOWER TO TOWER. (See TOWER EN ROUTE CONTROL SERVICE.)TPX-42. A numeric beacon decoder equipment/ system. It is designed to be added to terminal radar systems for beacon decoding. It provides rapid target identification, reinforcement of the primary radar target, and altitude information from Mode C. (See AUTOMATED RADAR TERMINAL SYSTEMS.)(See TRANSPONDER.)TRACEABLE PRESSURE STANDARD. The facility station pressure instrument, with certifica-tion/calibration traceable to the National Institute of Standards and Technology. Traceable pressure standards may be mercurial barometers, commis-sioned ASOS or dual transducer AWOS, or portable pressure standards or DASI. TRACK. The actual flight path of an aircraft over the surface of the earth. (See COURSE.)(See FLIGHT PATH.)(See ROUTE.)(See ICAO term TRACK.)TRACK [ICAO]. The projection on the earth’s surface of the path of an aircraft, the direction of which path at any point is usually expressed in degrees from North (True, Magnetic, or Grid). TRACK OF INTEREST (TOI). Displayed data representing an airborne object that threatens or has the potential to threaten North America or National Security. Indicators may include, but are not limited to: noncompliance with air traffic control instructions or aviation regulations; extended loss of communica-tions; unusual transmissions or unusual flight behavior; unauthorized intrusion into controlled airspace or an ADIZ; noncompliance with issued flight restrictions/security procedures; or unlawful interference with airborne flight crews, up to and including hijack. In certain circumstances, an object may become a TOI based on specific and credible intelligence pertaining to that particular aircraft/ object, its passengers, or its cargo. PCG T.4 TRACK OF INTEREST RESOLUTION. A TOI will normally be considered resolved when: the aircraft/object is no longer airborne; the aircraft complies with air traffic control instructions, aviation regulations, and/or issued flight restrictions/security procedures; radio contact is re.established and authorized control of the aircraft is verified; the aircraft is intercepted and intent is verified to be nonthreatening/nonhostile; TOI was identified based on specific and credible intelligence that was later determined to be invalid or unreliable; or displayed data is identified and characterized as invalid. TRAFFIC. a. A term used by a controller to transfer radar identification of an aircraft to another controller for the purpose of coordinating separation action. Traffic is normally issued: 1.In response to a handoff or point out, 2.In anticipation of a handoff or point out, or 3. In conjunction with a request for control of an aircraft. b. A term used by ATC to refer to one or more aircraft. TRAFFIC ADVISORIES. Advisories issued to alert pilots to other known or observed air traffic which may be in such proximity to the position or intended route of flight of their aircraft to warrant their attention. Such advisories may be based on: a. Visual observation. b. Observation of radar identified and nonidenti-fied aircraft targets on an ATC radar display, or c. Verbal reports from pilots or other facilities. Note 1: The word “traffic” followed by additional information, if known, is used to provide such advisories; e.g., “Traffic, 2 o’clock, one zero miles, southbound, eight thousand.” Note 2: Traffic advisory service will be provided to the extent possible depending on higher priority duties of the controller or other limitations; e.g., radar limitations, volume of traffic, frequency congestion, or controller workload. Radar/ nonradar traffic advisories do not relieve the pilot of his/her responsibility to see and avoid other aircraft. Pilots are cautioned that there are many times when the controller is not able to give traffic advisories concerning all traffic in the aircraft’s proximity; in other words, when a pilot requests or Pilot/Controller Glossary is receiving traffic advisories, he/she should not assume that all traffic will be issued. (Refer to AIM.)TRAFFIC ALERT (aircraft call sign), TURN (left/right) IMMEDIATELY, (climb/descend) AND MAINTAIN (altitude). (See SAFETY ALERT.)TRAFFIC ALERT AND COLLISION AVOID-ANCE SYSTEM. An airborne collision avoidance system based on radar beacon signals which operates independent of ground-based equipment. TCAS-I generates traffic advisories only. TCAS-II generates traffic advisories, and resolution (collision avoid-ance) advisories in the vertical plane. TRAFFIC INFORMATION. (See TRAFFIC ADVISORIES.)TRAFFIC INFORMATION SERVICE. BROADCAST (TIS.B). The broadcast of ATC derived traffic information to ADS.B equipped (1090ES or UAT) aircraft. The source of this traffic information is derived from ground.based air traffic surveillance sensors, typically from radar targets. TIS.B service will be available throughout the NAS where there are both adequate surveillance coverage (radar) and adequate broadcast coverage from ADS.B ground stations. Loss of TIS.B will occur when an aircraft enters an area not covered by the GBT network. If this occurs in an area with adequate surveillance coverage (radar), nearby aircraft that remain within the adequate broadcast coverage (ADS.B) area will view the first aircraft. TIS.B may continue when an aircraft enters an area with inadequate surveillance coverage (radar); nearby aircraft that remain within the adequate broadcast coverage (ADS.B) area will not view the first aircraft. |
