| With the fierce competition in the retail market of refined oil products,the gross profit rate of refined oil products continues to decrease.The retail companies of refined oil products gradually focus on the retail market of gas station convenience stores.However,the gas station convenience stores are facing great opportunities and challenges.The scattered layout and limited inventory level of the stores make the logistics and distribution costs of the gas station convenience stores high.The operators begin to pay attention to the construction of the commodity distribution network of the convenience stores,especially the distribution of cold chain commodities.The reasonable location and distribution path of cold chain front warehouse of gas station convenience store can ensure the quality of cold chain goods,effectively improve the transportation efficiency of cold chain logistics,reduce the shortage rate of stores,reduce the operation cost of cold chain logistics,and improve the efficiency of enterprises.Firstly,this paper reviews the literatures from three aspects including distribution mode of chain convenience stores,vehicle routing optimization and location routing optimization;then,it introduces the current commodity distribution mode of Y company’s gas station convenience stores,and puts forward the "cold chain front warehouse" mode for the problems of the cold chain commodity distribution mode;then,it establishes the front warehouse cold chain distribution mode based on the principle of minimum cost Thirdly,there are the advantages and disadvantages of different algorithms.Combined with the actual situation,this paper selects the minimum envelope method and improved genetic algorithm to solve the model.Finally,the paper takes Y company as an example to collect data and solve the model,and obtains the optimal location scheme and the optimal distribution path.The model is helpful for enterprises to reduce operating costs,optimize store sales and speed up commodity turnover. |