关键词: 突发事件, 救护车分配, 伤员簇人数函数, 救助工期, 加权救助时间

Abstract: The properties of casualties cluster function and ambulance rescuing capacity function are studied to obtain the simplified equivalent condition of ambulances full-loaded constraints in large-scale emergency. Based on this condition, a lower bound for the rescuing makespan is derived and minimized makespan is obtained in the condition of ambulances with single capacity. With given rescuing makespan, the minimum demand for ambulances and its allocation scheme is proposed by setting up programming model. With given number of ambulances and different thresholds, the minimum makespan and weighted total flow time allocation scheme is also obtained by improved model. The combination of ambulances with different capacities is considered in these models. The numerical case based on a simulated earthquake scenario illustrates the validity and efficiency of the proposed method.

Key words: emergency, ambulance allocation, casualties cluster function, rescuing makespan, weighted total flow time