Optimized maritime emergency resource allocation under dynamic demand

Emergency resource is important for people evacuation and property rescue when accident occurs. The relief efforts could be promoted by a reasonable emergency resource allocation schedule in advance. As the marine environment is complicated and changeful, the place, type, severity of maritime accident is uncertain and stochastic, bringing about dynamic demand of emergency resource. Considering dynamic demand, how to make a reasonable emergency resource allocation schedule is challenging. The key problem is to determine the optimal stock of emergency resource for supplier centers to improve relief efforts. This paper studies the dynamic demand, and which is defined as a set. Then a maritime emergency resource allocation model with uncertain data is presented. Afterwards, a robust approach is developed and used to make sure that the resource allocation schedule performs well with dynamic demand. Finally, a case study shows that the proposed methodology is feasible in maritime emergency resource allocation. The findings could help emergency manager to schedule the emergency resource allocation more flexibly in terms of dynamic demand.

事故发生时，应急资源对于人员疏散与财产救助至关重要。提前制定合理的应急资源调度方案，能够有效提升应急救援效率。由于海洋环境复杂多变，海上事故的发生地点、事故类型与严重程度均具有不确定性与随机性，进而催生应急资源的动态需求。面对动态需求，制定合理的应急资源调度方案颇具挑战，其核心问题在于确定应急储备中心的最优应急资源存量，以提升救援效能。本文针对动态需求展开研究，将其建模为集合形式，随后提出了一类含不确定数据的海上应急资源调度模型。在此基础上，开发了一种鲁棒优化方法，用以确保资源调度方案在动态需求场景下仍能保持良好的执行效果。最后，通过案例研究验证了所提方法在海上应急资源调度中的可行性。本研究成果可帮助应急管理人员针对动态需求，更灵活地开展应急资源调度工作。