基于航路点布局的多目标网络结构优化方法

为了提高区域航路网络结构的科学性、减轻飞行流量增长对网络运行带来的压力，提出了基于航路点布局的多目标网络结构优化方法。首先，考虑区域航路网络的组成要素，设计了反映网络综合性能的优化目标和约束条件以形成优化模型。然后，建立基于节点移动、融合、分解的航路点布局策略，进而给出优化模型的求解步骤，并利用NSGA-Ⅲ算法完成模型求解。最后，对北京飞行情报区部分区域航路网络进行仿真分析，结果表明，使用NSGA-Ⅲ算法得出的区域航路网络具有良好的综合性能。最优网络在满足约束条件的同时，保证了运行费用和非直线系数基本不变，并使得飞行冲突系数减少了10.8%。可见，所提优化方法能有效提升区域航路网络的经济性、安全性和可行性，符合中国现行空域环境和管理体制。 

Multi-objective network structure optimization method based on waypoint layout

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.