关键词: 选址-路径, 不确定, 设施点失灵, 路径超期风险, 鲁棒优化

Abstract: In order to resist the damage caused by disasters and improve the rescue efficiency, both facility failure and path risk after emergency are considered, an emergency logistics system of three level network including the uncertainty in demand of multi-relief materials and the relief time by multi-mode transportation is studied. Besides, a model of emergency location-routing problem based on robust optimization is developed to minimize the total transportation time. CPLEX is used to solve the model. Moreover, the validity of the model is demonstrated by the numerical examples. The results show that the robust optimization can effectively deal with the uncertain demand and time, and can avoid the risk of facility failure. The robust model is more robust compared to the deterministic model. It provides an effective method to solve the emergency facility location and delivery emergency material timely.

Key words: location-routing, uncertainty, facility failure, path risk, robust optimization