关键词: 碰撞风险, 位置误差, 复飞, 混合构型跑道, 起降窗口（ADW）

Abstract:  To address the issue of uncertain turning positions for go-around aircraft during fixed-altitude turning proce鄄 dures, a kinematic model of the aircraft was first established based on different altitude go-around situations in this paper. Secondly, combining the position changes of aircraft departing from the lateral runway, a real-time dynamic interval calculation model was constructed, and position errors were further introduced to establish a collision risk model. Finally, taking Chengdu Tianfu International Airport as a case study, the collision risk be鄄 tween approach aircraft during go-around and aircraft departing from the lateral runway was analyzed. The re鄄 search results indicate that under the operating conditions of RWY 20, the collision risk is significantly correlated with the approach aircraft′s go-around position. Reasonably setting the arrival-departure window (ADW), from 7 900 m before the runway threshold to 900 m beyond it, can effectively improve operational safety. In addition, the go-around performance parameters have a significant impact on the ADW range, and as the climb gradient increases, the ADW range can correspondingly decrease.

Key words: collision risk, position error, go-around, mixed configuration runway, arrival-departure window (ADW)