【摘要】 为了在地震灾区快速配送救灾物资,建立了一个多产品多运输方式的随机动态应急配送中心定位—运输路线安排问题的多目标优化模型,据此得出不同阶段应急配送中心的定位以及救援物资运输路线安排决策方案。根据该模型的特点,提出一种基于动态规划和权重系数变换法的改进遗传算法,并运用罚函数法处理模型中的约束条件。算例分析表明了该模型和算法的有效性,能为应急管理部门提供辅助决策支持。更多还原

【Abstract】 To distribute relief commodities for post-earthquake,developed a stochastic demand multi-objective LRP model with multi-commodities multi-modal transportation to determine the locations of relief distribution centers in the disaster area, as well as the relief vehicle routes in each period during relief process. According to the characteristics of the model,proposed an improved genetic algorithm based on dynamic programming and weighted coefficient transformation,and adopted a punished function method to deal with restriction in model. The results of a numerical example show availability of the proposed model and algorithm,and it can help the emergency management department provide assistant decision-making.更多还原