Multi-Flight Rerouting Optimisation Based on Typical Flight Paths Under Convective Weather in the Terminal Area

Abstract

With the rapid growth of flight volume, the impact of convective weather on flight operations in the terminal area has become more and more serious. In this paper, the typical flight paths (TFPs) are used to replace flight procedures as the routine flight paths in the terminal area, and the TFP of each flight is predicted by Random Forest (RF), Boosting Tree (BT) and K-Nearest Neighbour (KNN) algorithms based on the weather and flight plan characteristics. A multi-flight rerouting optimisation model by bi-level programming is established, which contains a flight flow optimisation model in the upper layer and a single flight path optimisation model in the lower layer. The simulated annealing algorithm and the bidirectional A* algorithm are used to solve the upper and lower models. This paper uses the terminal area of Guangzhou Baiyun Airport (ZGGG) and Wuhan Tianhe Airport (ZHHH) for case analysis. The RF algorithm has better performance in predicting TFPs compared with the BT and KNN algorithms. Compared to the historical radar trajectory, the flight path optimisation results show that for the Guangzhou terminal area, while meeting the Terminal Airspace Availability (TAA) as constraint, the flight flow increases and the flight distance reduces, effectively improving the operational efficiency within the terminal.

Evaluation of Airspace Operation Safety Level based on PMS

“…Since the point merge airspace is located in the terminal area, the evaluation of the operational safety level of the airspace based on point merge is similar to that of the terminal area. In 2014, Wang Zhenfei [3] established a flight conflict risk calculation model for cross-traffic flow, 1 Email:252323341@qq.com converging traffic flow flight conflict and five-sided parallel flight conflict in the approach phase, which has certain reference value. Li Yike and other scholars [4] identified different types of risk scenarios based on parallel operation mode, and proposed a safety risk modeling method based on parallel approach operation and a risk probability measurement method based on Monte Carlo simulation experiment.…”

Optimising Traffic Safety – Locating Traffic Gendarmes Based on Multi-Criteria Decision Making

“…In addition, it is seen that mathematical models are frequently used in efficiency and productivity calculations in the analytical modelling and solving of many life problems. Analysis of search and rescue missions of coast guard vehicles [23], selection of coast guard elements' facility locations [24], multi-flight routing optimisation [25], security operations planning in an environment of uncertainty [26], routing and charging of electric vehicles [27], medicine distribution between pharmacy warehouse and pharmacies [28], determination of police checkpoints that intervene in traffic accidents on highways [29]. To the best of our knowledge, no previous studies have utilised the CRITIC method in conjunction with mathematical modelling to optimise the selection of traffic gendarme facility locations, determine their duties and improve overall efficiency.…”