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摘要: 跑道容量通常可用跑道容量曲线来表示, 它表示了起飞着陆容量间的相互制约关系。从管制员的工作角度出发, 以ASAC容量模型为基础建立了跑道容量的概率模型及其C语言实现, 以实际机场统计数据, 对单跑道容量曲线进行了计算和分析。模型计入了管制规则、进近(起飞) 速度、位置不确定性、风速、跑道占用时间、机型组合等随机变量的影响Abstract: Runway capacity can be presented by capacity curve, which reveals the interdependent relationship between landing and departure.From the viewpoint of controller, this paper establishes a runway probility capacity model based on ASAC model, presents capacity analysis and calculation result based on the data from an operational airport. The model considers following parameters: ATC regulation, approach (departure) speed, position uncertainty, wind speed, runway occupation time, traffic mix etc.
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Key words:
- runway capacity curve /
- flow management /
- mathematic model /
- probility theory
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表 1 最小着陆、起飞间隔
Table 1. Tab.1 The minimium landing and takeoff traffic gap
CCAR/km FAR/km 前\后 轻型 中型 重型 轻型 中型 重型 轻型 6 6 6 3 3 3 中型 10 6 6 4 3 3 重型 12 10 8 6 5 4 表 2 某机场运行数据(FAA标准中B757为重型机)
Table 2. Tab.2 The operating data from an airport (in FAA B757 Belong to Heavy)
项目\机型 B737 B757 A320 A321 A340 EMB145 DHC-8 平均最后进近速度 251 250 254 265 260 250 240 平均起飞速度 284 287 274 274 290 278 266 重量类型 中型 中型 中型 中型 重型 中型 中型 组合比例 0.40 0.20 0.15 0.15 0.05 0.03 0.02 表 3 各种因素对跑道最大着陆容量的影响
Table 3. Tab.3 The influence parameters to maximium landing capacity
容量/架·h-1 31.942 33.605 34.064 34.206 34.206 跑道占用时间/min 1.40 1.30 1.25 1.20 1.10 容量/架·h-1 (CCAR标准) 32.844 34.206 35.686 37.300 39.066 容量/架·h-1 (FAR标准) 34.791 36.241 37.763 39.400 40.590 间距标准(整体增减量) /% +5 0 -5 -10 -15 -
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