基于航迹的终端区进场效率

随着空中交通量持续增长,空域拥堵、资源紧张、航班延误等问题愈发严重.为了在现有运行环境下提高终端区效率,提出了水平维度与垂直维度联合的终端区进场效率综合评价指标.以天津滨海国际机场为例,基于航迹数据对终端区进场效率进行分析,以评估机场短期改进的潜力.评估结果显示:天津机场终端区进场效率整体较低;不同进场方向航班进场效率不同;航班下降过程中平飞段较多,导致较大的垂直偏差和较长的额外时间;研究还发现水平维度和垂直维度效率评价指标间存在一定的相关性,随着额外时间的增加,垂直偏差也会相应地增加.天津机场可以通过更好地遵循最佳性能剖面来减少额外时间和降低垂直偏差,从而提升终端区效率.

Research on the Arrival Efficiency of Terminal Area Based on Flight Track

As air traffic continues to grow, problems such as airspace congestion, resource shortages, and flight delays have become more and more serious. In order to improve the efficiency of the terminal area under the existing operating environment, a comprehensive evaluation index of the arrival efficiency of terminal area combined the horizontal dimension and the vertical dimension is proposed in this paper. Taking Tianjin Binhai International Airport as an example, the arrival efficiency of terminal area is analyzed based on the track data, so as to evaluate the short-term improvement potential of the airport. It is found that the overall arrival efficiency of the Tianjin Airport terminal area is low. The arrival efficiency of flights in different arrival directions is different. During the flight descent, there are more level flights, and the larger vertical deviation and longer extra time are caused. It is also found that there is a certain correlation between the efficiency evaluation indexes of horizontal dimension and vertical dimension, and with the extra time increases, the vertical deviation will increase accordingly. The extra time and vertical deviation can be reduced by better following the best performance profile, thereby the efficiency of the Tianjin Airport terminal area can be improved.