System-dynamics model on prediction of container throughput of Ningbo-Zhoushan port

Predicting of port container throughput is characterized by a series of nonlinear factors' interaction,which form a high-order,complicated time-varying system.In view of the thought mentioned above,a container throughput predicting method based on SD was proposed.In the model,five subsystems,i.e.,environment system,economy system,harbor system,import and export trade system and the collecting distributing system were included to consider the nonlinear interactions among relative factors.Using this model,the container throughputs from year 2000 to 2020 of Ningbo-Zhoushan port were predicted and the simulated and verified results suggest the model to be effective and feasible.