Abstract
In order to select the optimal transportation route among alternative transportation routes more accurately and objectively, the choice of urban oversize cargo transportation routes was studied by taking the optimization weight–TOPSIS combination method for specific calculations. This model, based on an entropy weight method, cloud model, and TOPSIS method, combines the superiority of the cloud model for reflecting the randomness and discreteness of subjective evaluation with the advantages of the TOPSIS method in dealing with the problem of multi-objective programming. Through selecting and classifying several the main road influencing factors of urban oversize cargo transportation, based on the data of four urban roads, the entropy weight method is used to initially determine the weights of each influencing factor, the cloud model is used to optimize weights, the TOPSIS method is used to compare and evaluate the paths, and the optimal transportation route is selected on this basis. The results showed that the optimization weight–TOPSIS method is scientific and accurate for the multi-objective planning of oversize cargo transportation route selection, and solves the problem of the impact of subjective factors in existing methods and the difficulty of processing multiple influencing factors. The Pearson consistency test results show that the Pearson correlation coefficient between the proposed method and the actual oversize cargo transportation route selection is 0.995, which is higher than the calculation results without using the combination weight.
Highlights
As an important part of modern logistics, oversize cargo transportation refers to a series of applications of suitable vehicles, ships, and other transportation tools, using the corresponding safety measures and the necessary administrative permission, via roads, waterways, railways, and other transportation methods, from the place of departing to the place of delivery
Huang used the entropy weight method to evaluate the transportation of dangerous cargos; the results show that the unsafe actions and behaviors of humans are the most dangerous factors that influence the normal and safe operations of transportation [12]
This article compares the calculation results using only the TOPSIS method and the entropy weight–TOPSIS method with the calculation results used in our research
Summary
As an important part of modern logistics, oversize cargo transportation refers to a series of applications of suitable vehicles, ships, and other transportation tools, using the corresponding safety measures and the necessary administrative permission, via roads, waterways, railways, and other transportation methods, from the place of departing to the place of delivery. A series of professional operations such as moving, loading and unloading, transportation, and storage of oversize cargos with non-dismantling characteristics is carried out. The demand for the oversize cargo logistics market continues to increase. Due to actual transportation demands, there are situations where oversize cargoes are transported through cities. This kind of transportation has caused great problems for urban traffic. Because the transportation speed of oversize cargoes is generally slow, it will cause long-term lane occupation over time. The inability to select a suitable transportation route quickly and accurately is an unsolved problem of current oversize cargo transportation. In order to minimize the interference of oversize cargo transportation on urban traffic from the space dimension and the time
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