Research on the triangle distribution model based on third-party logistics alliance

This paper takes vehicle distribution of TPL as the object of study, discussing the solution to the arrangement of vehicle routing problem which is based on “multi-deport” vehicle distribution of the triangle network. As for the actual situation of vehicle distribution, clusters the supply and demand nodes into sliced area in order to form triangle distribution model and realize the triangle closed-loop route of vehicle distribution within pickup and delivering. By comparing relative advantages and disadvantages of the traditional distribution model and the triangle distribution model, stimulation the improvement of ant-algorithm, this paper finally analyzes the results of stimulation. The simulations results show that the triangle closed-loop model of vehicle distribution can reduce unload ratio and the cost of transportation, which means improvement of full-load ratio and achievement the optimal allocation of transport resources.