Four-dimensional trajectory optimization model with priority in continuous time period
| Autor: | Xianjie Wu, Meng Li, Jianyu Chu, Yinfeng Li |
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| Rok vydání: | 2021 |
| Předmět: | |
| Zdroj: | Journal of Mechanical Engineering, Automation and Control Systems. 2:77-86 |
| ISSN: | 2669-1361 2669-2600 |
| DOI: | 10.21595/jmeacs.2021.22056 |
| Popis: | This article aims to mitigate the imbalance of capacity and flow in airspace. Targeting to minimize the total delay time, taking the real-life sector operation and aircraft flight rules into consideration, with constraints of sector capacity limit and minimal time interval, the principle to prioritize aircraft when the delay occurred was raised. A trajectory planning model with the priority of aircraft was then established in the model of trajectory based on operation in a continuous period. The traditional genetic algorithm was also improved through the strategy of enhanced elitism preserving and double-stranded chromosome structure. Case studies indicated that the proposed trajectory planning model and solution algorithm have contributed to, over the two periods, an average reduction of 71.77 % in the delay time on optimization effect, and an increase of 19.48 % in the calculation speed. In this case, the model appears to, in a relatively short time, provide a trajectory allocation strategy with security and timeliness, for aircraft operated in consecutive periods. As a result, the sectors can operate without any conflicts while effectively reducing flight delays, minimizing the traffic congestion and potential accidents, so as to take the most advantages of sector resources allocation. |
| Databáze: | OpenAIRE |
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