Abstract
Safety is the premise of efficiency and effectiveness in the port operation. Safety investment is becoming a vital part of port operation in current era in order to overcome different types of hazards the port operation exposed to. This paper aims to improve the safety level of port operation through analyzing its influencing factors and exploring the interactions between the safety investment and system risk level. By analyzing the key factors affecting the port operation and their mutual relationship within a man–machine–environment–management system, a decision-making model of safety investment in port enterprise was established by system dynamics (SD). An illustration example and a sensitivity analysis were carried out to justify and validate the proposed model. The results show that increasing the total safety investment of port enterprises, improving the safety management investment on personnel, and strengthening the implementation effect of investment can improve the degree of port security to a certain extent. The strength of the proposed work is its practical application in current scenarios using real time data and the ability to provide a baseline approach for port enterprises to formulate safety investment strategy.
Highlights
The big explosion that occurred in Tianjin port in 2015 has prompted great concern about port operation safety domestic and abroad
The port operation activities are engaged in such a dynamic environment that leads to many failures; for instance, a person injured due to human errors and a vessel collision with the dock owing to human errors coupled with bad sea conditions
What factors influence the port safety operation? Or, what are the risk factors in the port operation? How can the dynamic interaction between the safety investment and system risk level be explored? How can the limited safety investment on different influencing factors be allocated? exploring the dynamic interaction between safety investment and system risk level and allocate limited investment are important to put forward the practical risk control measures in port enterprises
Summary
The big explosion that occurred in Tianjin port in 2015 has prompted great concern about port operation safety domestic and abroad. The relationship between safety investment and system risk level is dynamic, since the safety of port operation is affected by multiple factors such as workforce, machinery, management, and others [3]. How can the dynamic interaction between the safety investment and system risk level be explored? Exploring the dynamic interaction between safety investment and system risk level and allocate limited investment are important to put forward the practical risk control measures in port enterprises. To develop a system dynamic model to explore the relationship between safety investment and system risk level. We proposed these hypotheses: Hypothesis 1 (H1) It systemically identifies the risk factors relating to port safety operation from a systematic perspective involving human, equipment and facility, management, and environment risks.
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