| Citation: | ZHENG Yukun, WANG Ying, LI Chao, et al. Multi-objective network structure optimization method based on waypoint layout[J]. Journal of Beijing University of Aeronautics and Astronautics, 2019, 45(1): 1-9. doi: 10.13700/j.bh.1001-5965.2018.0157(in Chinese)
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In order to improve the scientific nature of regional air route network structure and reduce the network operation pressure made by flight flow growth, a multi-objective network optimization method based on waypoint layout was proposed. First, the constituent elements of regional air route network were considered, and the optimization model was made with the design of optimization targets and constraint conditions which reflected the network comprehensive performance. Then, a waypoint layout strategy was established based on node movement, fusion and decomposition, so the solution procedure of optimization method was provided and the method can be solved by NSGA-Ⅲ algorithm. Finally, a simulation of partial regional air route network belonging to Beijing flight information region was analyzed and the results demonstrate excellent comprehensive performance of air route networks made by NSGA-Ⅲ algorithm. While the optimal network satisfies the constraint conditions, the operating cost and non-linear coefficient are basically unchanged, and the flight conflict coefficient is reduced by 10.8%. So this optimization method can promote economic efficiency, safety and feasibility of air route network, which conforms to current airspace environment and management system in China.
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