摘要
为了缓解目前紧张的交通拥堵形势,有效规划合理的地下物流网络,文中进行了地下物流系统配送路线优化研究。文中分析了目前地下物流系统的研究概况,指出了配送线路设计的特殊之处,提出了配送时间和线路建设成本对地下物流配送线路的影响问题,考虑配送线网合理规模约束与可达性约束,以地下物流配送线路的总成本最小为目标,建立了基于投资成本和时间成本的地下物流配送路线优化模型。采用遗传算法对模型进行求解,算例结果表明,运用该模型可对所有可能的配送线路进行筛选,并得到最优的线路网络布设方案。该模型可用于城市地下物流系统的规划中,对配送线路网络进行优化布局。
In order to alleviate the tense situation of traffic congestion, and make a plan effectively and reasonably for underground logistics network, this article had carried on the research about the distribution route optimization in underground logistics system(ULS). It analyzes the general research situation of the underground logistics system at present,and points out the traits of the routes planning in ULS. Then it puts forward the problem that the delivery time and line construction cost could influence the distribution routes. Considering constraints of the reasonable distribution network scale and accessibility, it sets up the underground logistic distribution route optimization model that investment-cost and time-cost were took into account, with the goal of minimizing the total distribution cost . Finally, the model is solved with genetic algorithm(GA),and a numerical example result showed that this model can screen all possible distribution lines, and get the optimal route network layout scheme. The model can be used in the planning of urban underground logistics system,optimize the distribution route network layout.
作者
周婷
周爱莲
ZHOU Ting;ZHOU Ai-lian(School of Transport Engineering, Changsha University of Science & Technology, Changsha 410114, China)
出处
《物流工程与管理》
2016年第8期60-62,87,共4页
Logistics Engineering and Management
关键词
地下物流系统
配送
路径优化
遗传算法(GA)
underground logistic system
distribution
route optimization
genetic algorithm (GA)
