基于需求不确定性的分层网络设计研究

Hierarchical Network Design under Demand Uncertainty

为研究在需求不确定影响下的分层航空运输网络优化设计问题,以确定型分层运输网络模型为基础,将优化目标设置为可能的需求场景下期望网络运行成本最小。提出基于需求不确定性的分层网络设计模型,同时给出网络中O/D路由的求解方法。以某年中国的实际航空运输数据为例,计算分析确定型和不确定型分层网络设计模型所得到的运输网络在需求不确定影响下的成本鲁棒性。结果表明:所提出的模型具有更好的成本鲁棒性。

In order to study the optimal design of hierarchical air transportation network under the demand uncertainty.Based on the deterministic hierarchical transportation network model,the optimization objective was set to minimize the expected network operating cost under possible demand scenarios.A hierarchical network design model under demand uncertainty was proposed,and the solving method of O/D routing in the network was also given.Taking the actual air transportation data of China in a certain year as an example,the performance of cost robustness of the transportation network obtained by the deterministic and uncertain hierarchical network design model under demand uncertainty was calculated and analyzed.The results show that the proposed model has a better cost robustness.