SRO对跑道容量的影响评估

SRO Impact Assessment on Runway Capacity

缩减尾流间隔提升跑道容量是应对航空交通流量迅猛发展、缓解机场拥堵和延误的有效手段。传统的方法在分析尾流间隔缩减对跑道容量的影响时,忽视了SRO(Simultaneous Runway Occupation)的作用,导致理论分析与实际存在一定偏差。本文定量评估了SRO对跑道容量产生的影响,并用机场实测数据进行了仿真验证。首先给出了计算发生SRO概率的模型,随后推导了不同尾流间隔标准下SRO对跑道容量影响的计算公式,进一步分析了ROT(Runway Occupation Time)和LTI(Landing Time Interval)对SRO及跑道容量的影响。仿真结果表明:通过航空器再分类缩减尾流间隔提升跑道容量,SRO会造成2.95%的偏差。相比现阶段尾流间隔标准,在新尾流间隔标准(FAA RECAT1.5)下,SRO对跑道容量的影响更大。本文的研究结果可为跑道容量的准确评估和空管运行效率的提升提供技术支持。

Increasing runway capacity by reducing wake separation was an effective way to deal with the rapid development of air traffic flow and alleviate airport congestion and delay. In analyzing the impact of wake separation reduction on runway capacity, the traditional methods ignored the effect of the SRO(Simultaneous Runway Occupation), thus causing a discrepancy between theoretical analysis and practice. In this paper, the influence of SRO on runway capacity was quantitatively evaluated, and simulation verification was carried out with the airport measured data. First, a model for calculating the probability of SRO was given. Then, the formula for calculating the impact of SRO on runway capacity under different wake separation standards was derived, and the impact of ROT(Runway Occupation Time) and LTI(Landing Time Interval) on SRO and runway capacity was further analyzed. The simulation results show that the SRO will cause a deviation of 2.95%, about the improvement of runway capacity due to wake separation reduction by aircraft reclassification. Compared with the current wake separation standard, under the new wake separation standard(FAA RECAT1.5), the SRO has a greater impact on runway capacity. The results can provide technical support for the accurate evaluation of runway capacity and the improvement of air traffic control operation efficiency.