System dynamics based factor analysis for the speed of emergency materials transportation
Emergency materials transportation is one of the most important parts of unconventional emergency management.Using system dynamic model,this paper conducts the simulation study to identify the key influencing factors for the speed of emergency materials transportation.We firstly classify emergency materials into cumulative part and the non cumulative part,and then construct a system dynamics analysis model for the emergency materials transportation.For verification,the transportation process of activated carbon in the 2005 Songhua river pollution accident is simulated empirically.Results from the simulation analysis show that the government emergency response delay and the capability of governmental emergency materials transportation are key factors in the process of emergency materials transportation.Work in this paper serves as important reference when the government formulating the policy to improve the speed and efficiency for the emergency materials transportation during the emergency management process.