Research On The Optimization Of The International Logistics Network Layout Of The Belt And Road Based On Demand Uncertainty

The Belt and Road Initiative provides new opportunities for the development of international logistics;at the same time,there are practical problems to be solved urgently,such as the interconnection of logistics infrastructure,the reasonable layout of logistics channels and logistics networks.Based on this,this paper applies the spatial structure evolution theory,logistics system planning method and uncertainty planning theory,and considers the characteristics of uncertain demand to study the layout optimization of the international logistics network based on the Belt and Road.The main research contents are as follows.Firstly,this paper analyzes and summarizes the research status and development trend at home and abroad related to the logistics network layout optimization based on the Belt and Road;at the same time,it introduces the basic theories and methods involved in this study,as well as the object,boundary and method of this study.Secondly,from the perspective of the evolution of regional spatial structure,this paper studies the dynamic evolution law of the international logistics demand spatial connection network based on the Belt and Road.Using the theories of complex network analysis and spatial econometrics,this paper constructs an analysis model of the spatial connection and dynamic evolution of the international logistics demand based on the Belt and Road,puts forward the corresponding measurement indicators from three levels of the "point-line-network",and makes a corresponding case study on the spatial connection and evolution law of the international logistics demand based on the Belt and Road.Finally,by comprehensively using stochastic optimization theory and logistics system planning theory and method,this paper studies the layout optimization of the international logistics network based on the Belt and Road under uncertain demand,constructs a two-stage stochastic optimization model about the logistics network layout,and designs a heuristic solution algorithm based on Lagrange scenario decomposition according to the characteristics of the stochastic optimization model.In order to verify the effectiveness of the above optimization model and algorithm,the corresponding numerical simulation experiments are carried out.Based on this,it further takes the optimization of the layout of the "China-Russia" international logistics network as an example to carry out the corresponding empirical research.It is found that Chongqing,Urumqi,Taiyuan and Changchun are the best combination of distribution centers in the "China-Russia" international logistics network.The research results of this paper have certain theoretical significance and practical guiding value for the international logistics network layout planning and related policy making under the context of the Belt and Road.Figures 30,tables 20,references 145...