The paper considers a direct example of the use of mathematical modeling to analyze operations at a seaport container terminal. A subsidiary procedure of formation of a stack of containers subject to some form of customs inspection at a container terminal storage area formation has been chosen the target of research. As far as procedures are concerned, the formation of a stack for customs inspection is a labor-consuming technological process as it involves selective search and withdrawal from a common stack of one or even several containers that make up an indivisible lot to be exported to the customs inspection (searching) zone. The outcome of the research is a mathematical model of searching and withdrawing containers in question from a stack in the terminal storage area by means of deterministic finite-state machines, as well as substantiating the model validity with real prototypes. The application of this mathematical apparatus to the technological process modeling allows one to present a unified logic for controlling the prestacking process in the storage area, as well as to develop a stacking facility automatic control algorithm. The proposed model is a universal one, since the scope of its application can be enhanced, for example, to be applied to analyze operations at the backyard cargo handling complex when handling railway rolling stock.
container terminal, operation analysis, handling equipment, container stack, mathematical simulation
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