轴辐式快递网络的设计与优化

Design and Optimization of Hub-spoke Express Network

考虑快递网络覆盖区域内运输方式受到所处环境的影响,将不同运输方式转化为干线网络对应折扣因子的差异性,以快递网络总成本最小为目标,构建单分配轴辐式网络模型。通过算例实验表明了轴辐式快递网络模型的有效性、预先确定枢纽数目对网络总成本的影响、验证了折扣因子矩阵变动对快递网络的影响。

Considering the transport modes of express networks could be impacted by different traffic conditions,different transport modes are converted into the discount factor matrixes with respect to the trunk-line network included in the hub-spoke network.To minimize the total network cost,single-allocation hub-spoke network model is improved.The results from three numerical examples demonstrate that the effectiveness of the hub-spoke express network model,the impact on total network costs by the given number of hubs,and the impact on express delivery network by the changes of discount factor matrix.