关键词: 航空运输, 空域评估性能指标, 复杂性建模, 航空器, 空中交通管理, 冲突解脱

Abstract: To overcome the limitations of traditional evaluation methods which based on aircraft counts in assessing complexity of the air traffic situations, the paper develops a new air traffic complexity model based on structure factors. With analysis of air traffic control difficulty effects from the potential conflicts due to traffic structure factors such as the relative distance of aircraft pair-wise and the intersecting trajectory, the paper considers distance factor and the conflict factors in the model. Assessments based on the operational data from Guangzhou area control center in China indicate that the traffic complexity values vary as aircraft counts change all the time. However, the extending of the change is not the same and the tendency is even opposite sometimes. Replay and further analysis of the traffic situations validate the model that the new metric ensitively and accurately reflects the operational characteristics of the airspace compared by aircraft countsbased methods.

Key words: air transportation, metric for airspace evaluation, complexity modeling, aircraft, air traffic management, conflict resolution