A system dynamics model for port operation system based on time, quality and profit

A novel and generic system-dynamic-model is proposed, which analyzes port operation system from perspectives of time, quality and profit. First, by studying the internal structure and operation mechanism of port operation system, a sophisticated port operation system is defined and divided into three subsystems: time, quality and profit. Later a system-dynamic-model including three submodels is built via system dynamical methodology. Finally, an enterprise in Lianyungang Port is selected as a case study to seek effective methods to solve issues of port operation system through the simulation. The purpose of this study is to simulate the operational process at the port in order to provide a useful tool to achieve three management goals: guarantying service time, improving quality and reducing cost of port service. This research indicates that this model can be applicable to any port to analyze port operation system and provide support for the decision-making of port strategy and port policies.