Study On Dry Port Location With Considering Carbon Emissions And Construction Utility

Dry port is a logistics node with “one pass,three inspections” function in inland areas.Dry port has greatly improved the collection and distribution system in inland areas by using highway-railway and railway-sea combined transport.At the same time dry port alleviated the port-city contradictions of major ports,and ensured the stability of seaport sources and differentiated service capabilities.At present,China has a small number of dry ports,which are far below the level of developed countries such as Europe and the United States,and have uneven spatial distribution.Most of them are located in the north and southeast coastal areas.Among the established dry ports,some of the dry ports have problems such as insufficient capacity and low efficiency,which cannot meet the foreign trade demand of inland areas.The main cause of the above problems is the short time of China’s dry port operation.It lacks the support of theories,and needs to learn from the development experience of other countries.In previous studies of dry port location,the model mainly takes the minimum cost of location as the objective function,and less consideration was given to the impact of carbon emission and the properties of the selected city on the dry port location.Based on the facility location theory,this paper analyzes the influence of different factors on the dry port location based on the progressive relationship between factors considered in location.First,this paper constructs a two-level multi-objective planning problem that takes carbon emission into consideration.The upper model starts from the perspective of the decision makers,and selects two indicators of dry port construction cost and carbon emission as the objective function of the model.The lower model starts from the perspective of the user,the transportation cost of the cargo owner is taken as the objective function.Secondly,this paper combines the influence of the city’s own indicators and the return on investment,which builds the utility function of dry port construction.The model introduces the calculation results of the previous model’s carbon emissions into the model as constraints.The objective function is the maximum construction utility and the minimum carbon emission.Both of the models are solved using the NSGA-II algorithm with better convergence.Finally,a case study was conducted to ensure that the model is feasible,which choose the relatively weak area of China’s dry port construction—the Yunnan and Guizhou region,...