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Airspace risk management using surveillance track data: Stabilized approaches

机译：使用监控跟踪数据的空域风险管理：稳定的方法

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The outcome of operations in a designated airspace is a function of the cooperation between flights in the airspace and the coordination of Air Traffic Control (ATC). A critical airspace is the approach airspace in which flights are sequenced and separated to minima to maximize utilization of the available runways. Airline procedures call for flights to meet “stable approach criteria” at 1000 ft. and 500 ft. above ground level (AGL). ATC procedures define the trajectories flown, including airspeed, to maximize throughput through the airspace and runways. The ability to achieve the stabilized approach criteria is therefore a function of the coordination of the flight crews and ATC. This paper describes a method for analysis of stabilized approaches using surveillance track data. Risk events and factors related to stabilized approach criteria are defined. A case study of 8,219 approaches is conducted at a runway of slot controlled airport with a dominant carrier. The results quantify the portion of the approaches which violate the stabilized approach criteria. Results show that 27.8% of the approaches exhibited more than 10 knots change in groundspeed after sequencing 1000 ft. AGL, 14.1% after sequencing 750 ft. AGL, and 4.4% after sequencing 500 ft. AGL. The flights with rate of descent in excess of 1000 feet per minute (fpm.) are also studied. The effects of factors such as the speed at Final Approach Fix (FAF) and the runway centerline/glidepath acquisition position are analyzed. Results show that a flight that acquires glidepath after FAF has a higher probability of having an excessive speed change from 1000 ft. AGL to the runway threshold. Aircraft weight classes are also studied. The results indicate a lower landing speed and higher deceleration rate for small aircraft. The implications of these results and the limitations of using surveillance track data for this purpose are discussed.
机译：指定空域业务的结果是空域飞行与空中交通管制协调（ATC）之间的合作的函数。关键空域是一种方法空域，其中航班被测序，并分离为最小值以最大限度地利用可用跑道。航空公司程序呼吁航班以满足1000英尺的“稳定方法标准”。和500英尺。地面上方（AGL）。 ATC程序定义飞行的轨迹，包括空速，通过空域和跑道最大限度地提高吞吐量。因此，实现稳定的方法标准的能力是飞行机组人员和ATC的协调的函数。本文介绍了一种使用监控轨道数据分析稳定方法的方法。定义了风险事件和与稳定方法标准相关的因素。对8,219种方法进行了一个案例研究，在一个带有主导载体的插槽控制机场的跑道上进行。结果量化了违反稳定方法标准的方法的一部分。结果表明，在测序1000英尺的序列后，27.8％的方法在测序后，在测序后，在测序后，在测序后的750英尺1,450英尺，14.1％后，14.1％。测序500英尺500英尺。还研究了血液率超过1000英尺（FPM）的航班。分析了诸如最终方法固定（FAF）和跑道中心线/ GlidePath采集位置的速度等因素的影响。结果表明，在FAF之后获得GLIDEDPATH的飞行具有较高的速度从1000英尺的速度变化。AGL到跑道阈值。还研究了飞机重量等级。结果表明了较低的着陆速度和小型飞机的减速率较高。讨论了这些结果的影响和使用监控跟踪数据的局限性。

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