湖北文理学院学报2026，Vol.47Issue(8)：5-12,8.
时变路网下生鲜冷链物流多式联运路径优化方法研究
Optimization Algorithm for Multimodal Transportation Path of Fresh Cold Chain Logistics under Time-varying Road Network
摘要
Abstract
Fresh products such as fruits,vegetables,aquatic products,and meat have the characteristics of easy spoilage and high environmental temperature control requirements for transportation.Therefore,it is usually necessary to use two or more multimodal transportation methods comprehensively to achieve efficient docking from the place of origin to low consumption.To reduce the total transportation cost of fresh products in cold chain logistics,this article describes the path optimization problem in the form of a directed graph.Based on conditional assumptions,the total time for multimodal transportation of highways,railways,and aviation under time-varying road networks is calculated;Using the total multimodal transportation time as the key calculation parameter,analyze the comprehensive cost of cold chain logistics multimodal transportation,and construct a mathematical model for path optimization with the goal of minimizing the comprehensive cost while considering customer time satisfaction;Combining genetic algorithm and Metropolis criterion for efficient optimization and solution,achieving multimodal transportation path optimization.The experimental results show that using the design method to solve the optimal path quickly reaches convergence after the 90th iteration,with a corresponding minimum comprehensive cost.This indicates that the design method has practical effectiveness in dealing with cold chain transportation problems in time-varying road networks,and can efficiently and quickly obtain the optimal solution that meets the target conditions.关键词
时变路网/冷链物流/遗传算法/多式联运路径优化Key words
time-varying road network/cold chain logistics/genetic algorithm/optimized multimodal transportation path分类
交通工程引用本文复制引用
龚丽兰,王芳..时变路网下生鲜冷链物流多式联运路径优化方法研究[J].湖北文理学院学报,2026,47(8):5-12,8.基金项目
安徽省高校哲学社会科学重点研究项目(2023AH053275) （2023AH053275）
