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援至关重要。提前制定合理的应急资源调配方案，可有效提升救援工作效能。由于海洋环境复杂多变，海上事故的发生地点、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，如何制定合理的应急资源调配方案颇具挑战，其核心问题在于确定应急储备中心的最优应急物资储备量，以优化救援效果。本文针对动态应急需求展开研究，并将其定义为集合形式；随后构建了含不确定数据的海上应急资源调配模型，继而提出一种鲁棒优化方法，确保在动态需求场景下资源调配方案仍能保持良好性能。最后通过案例研究验证了所提方法在海上应急资源调配中的可行性，研究结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配工作。