Modeling of a sea container terminal using a queuing network

The article focuses on the problem of modeling and forecasting the operation of a sea container terminal under the unevenness of cargo arrival and the influence of random factors on the service duration. The mathematical model takes the form of a queuing network (QN), whose nodes simulate the operation of the terminal structural elements. The movement of requests between nodes occurs according to a given route matrix. To describe transport flows arriving from sea and land, we use both ordinary and batch Poisson flows of requests. The constructed model is identified for a sea container terminal in the north of Vietnam – one of the largest in Southeast Asia. The model consists of 14 nodes and includes two incoming Poisson flows, one of which is batch. The route matrix and the parameters of incoming flows are determined by statistical processing of data from open sources and field observations. The mathematical model is implemented, and scenario simulation is performed. Based on the results obtained, we conclude the current capacity of the system and forecast its performance with an increase in the volume of container flows, in particular, with the arrival of ultra-large container vessels in the future.