Paired approach procedures for closely spaced parallel runways

Method of Determining Arrival-Departure Window of Lateral Runway Based on Risk Theory

“…One type is aimed at en route collision risk, and there are is some research on: cross routes, such as the macro-planning of the cross route angle with the goal of optimizing the route structure; route micro-adjustment with optimizing the location of intersections as the core; factors such as the collision risk at the intersection of routes and the relationship between the angle of intersection, and the length of flight segments; and the use of the “event” model for cross-routes collision risk analysis ( 5 – 11 ). The other type is the study of runway operation mode, but most of the research is based on parallel runways, and the research under lateral runway operation is still in the exploratory stage: the Monte Carlo simulation method was used to calculate safety zones for parallel runway approaches at different intervals and to conduct collision risk analysis for unpredictable flight failures on parallel runway simultaneous instrument approaches; a model was established to analyze the sensitivity of wake to flight safety during paired approach; and real-time risk prediction and conflict resolution are carried out on the aircraft maneuvering in the terminal area ( 12 – 16 ). Taking the runway of Beijing Chengdu New Airport as an example: the operation method of multi-runway airport control, including the V-shaped runway, was studied; a cross-runway collision risk model was established based on conflict points by referring to the modeling method of cross-route conflict points; and a collision risk assessment model between approaching and going around aircraft and departing aircraft under the near-distance parallel runway configuration was established, and a method for setting the AD window was proposed ( 17 – 19 ).…”