服务能力受损情景下的应急设施选址模型

Emergency facility location model under service ability damage scenarios

考虑突发事件造成应急设施服务能力受损的情景,通过最大、最小临界覆盖距离定义应急设施对需求点的应急服务质量,在满足需求点最低服务质量和数量要求条件下,以最大化加权服务质量期望值为目标建立应急设施选址模型.设计了一种基于模拟退火的求解算法,通过对临界覆盖距离、最低服务质量要求、设施服务能力等参数的数值实验,表明了所提出模型与算法可为解决应急设施选址决策提供有益的参考.

Considering the scenarios that emergencies damage the service abilities of some emergency facilities, service quantities are defined, among emergency facilities and demand points, by using the maximum and minimum critical coverage distance. An emergency facility location model is established within the objective to maximizing overall service quality expectation while ensuring the minimum service quality and quantity requirements. In order to solve this model, an efficient algorithm is designed based on the simulated annealing algorithm. Numerical experiments on the number of emergency facilities, the critical coverage range, the minimum service quality are conducted, these results show that the proposed model and algorithm can give a useful reference for the decision of emergency facility location.