System Dynamics Model of Unconventional Emergency Resource Coordination System

In the immediate aftermath of unconventional emergencies, coordination process of the emergency resources involves many complex factors. How to model the coordination process of the emergency resources, to evaluate the decision performance of the process is among one of the most important issues in the real world. We employ the System Dynamics (SD) method to analyze the feedback mechanism and the intercoupling mechanism of the coordination process. Then a SD model is built to explore the trend of demanding and supplying of relief supplies in the coordination process holistically and position the critical constraint factors in the process. Finally, we take the rice supplying and demanding in "5.12 Wenchuan earthquake" as a numerical example to simulate the proposed model, and analyze the simulation outputs.