Solution of vehicle routing problem with backhauls considering cost of arranging freight in carriage
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摘要: 考虑整理车厢的成本, 建立带回程取货的车辆路径数学模型, 采用禁忌搜索算法对模型进行求解, 并对某大型物流企业在北京市1 d内的配送和收集业务进行了优化, 优化计算在5 s内完成。计算结果表明: 在总路径增长7.8%的情况下, 车辆配送费用比节约算法降低了24.5%, 实现均衡值提高了9.3%。可见, 该算法降低了调度人员工作量, 节约了物流企业运输成本。Abstract: Considering the cost of arranging freight in carriage, a mathematic model of vehicle routing problem with backhauls was set up, and was solved by using tabu search algorithm. The vehicle routes of a large logistics enterprise with its intraday tasks including delivery and collection business in Beijing were optimized by using the model and the algorithm, and the optimization was completed in 5 s. Calculation result shows that under the condition that the total distance increases by 7.8%, the distribution cost of vehicle reduces by 24.5% compared with saving algorithm, and the equilibrium value increases by 9.3%. The model and the algorithm reduce the workloads of dispatchers and save the transport costs of logistics enterprises.
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表 1 三类算法性能对比
Table 1. Performance contrast of three algorithms
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