In order to study the evolution mechanism of multimodal transport network,analyze the characteristics of multimodal transport network,based on the BA scale-free network model,introducing the attractiveness model and calculating the node quality,a multimodal transport network evolution model considering the attractiveness factor of nodes is proposed.Taking 23 logistics node cities in Shandong Province as the nodes of the multimodal transport network and using MATLAB software for model simulation,the simulation results are compared and analyzed with the statistical characteristics of the actual network to verify the applicability of the improved multimodal transport network evolution model.The results show that the basic statistical characteristics of the improved multimodal transport network evolution model are close to those of the actual network,and it can accurately reproduce the actual characteristics and evolution laws of the multimodal transport network.The degree distribution of the simulation model is a negative slope straight line,following a power-law distribution,which belongs to the BA scale-free network model.In the future,the multimodal transport network should play a role in driving logistics hub cities and leading enterprises,increase network density,enhance network resilience,and form a safe and efficient logistics network that is internally and externally connected.
维普
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