Industrial Engineering Journal ›› 2021, Vol. 24 ›› Issue (2): 49-56.doi: 10.3969/j.issn.1007-7375.2021.02.007

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Road-Rail Multimodal Transportation Routing Optimization of Fresh Products Considering High-speed Rail Time Window and Customer Satisfaction

LI Yumin1, QIU Meng1, HEI Bolin1, FANG Zengli2   

  1. 1. School of Management Engineering, Zhengzhou University, Zhengzhou 450001, China;
    2. Zhengzhou Institute of Transportation Co. Ltd., Zhengzhou 450016, China
  • Received:2020-02-04 Published:2021-04-25

Abstract: In the context of high-speed rail participation in freight, according to fresh product transportation demand of small freight volume and high time efficiency, it is proposed to apply "highway + high-speed railway" as a method to rapid multimodal transportation of fresh products. Taking the minimum total cost as the target, and constrained by the high-speed rail service time windows and customer satisfaction, an optimization model is constructed for selecting the road-rail multimodal transportation route and deciding the transportation mode of fresh products based on fuzzy demand. Taking "Harbin-Kunming" transportation path as an example, the result calculated by Lingo12.0 shows that the road-rail multimodal transportation mode is better than single transportation mode in terms of total cost and customer satisfaction, and this new transportation mode enjoys more cost advantage than road-air multimodal transportation. The sensitivity analysis method is applied to explore the impact of changes in confidence level, customer satisfaction constraint and time satisfaction constraint on the total cost. The results verify the validity of the model and provide a useful reference for the decision of fresh products' road-rail multimodal transportation route.

Key words: road-rail multimodal transportation of fresh products, fuzzy demand, high-speed rail time windows, customer satisfaction, route optimization model

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