Abstract
Currently, container shipping plays an important role in international logistics. Terminals handle containers between different modes of transport and are a key element in supply chains. The quality of transport services, in general, depends on the technical and technological parameters of container terminals. At the same time, the task is to optimize the operating mode of the container terminal to reduce logistics costs. This article presents the results of a study of the traffic flows of terminals adjacent to the Tashkent regional railway junction stations, obtained based on timing observations on the unloading of containers arriving at the terminal by road for shipment by container trains. Based on these observations, the regularities of the distribution of the probabilities of the arrival of containers at the terminal and the time of servicing vehicles by a gantry crane were established. With the help of the established patterns, the main indicators were selected that characterize the quality of the container terminal functioning. A mathematical model has been developed and an algorithm for finding the optimal operating mode of a container terminal when forming a container block train. As the results of calculations have shown, the volume of logistics costs for the operation of a container terminal depends on the type and quantity of used handling equipment and the number of supply of fitting wagons to loading and unloading routes.
Highlights
Container terminals often increase the demand for servicing the loading or unloading of containers with limited capabilities of the system of handling equipment, that is, when the throughput of the loading and unloading section of road transport is not able to meet all incoming requirements in the form of container ships
In this study, the task of applying the queuing theory is posed, which makes it possible to establish the optimal duration of servicing a container terminal
The quality of functioning of container terminals can be assessed by several indicators, the choice of which depends on the nature of the object's task
Summary
Container terminals often increase the demand for servicing the loading or unloading of containers with limited capabilities of the system of handling equipment, that is, when the throughput of the loading and unloading section of road transport is not able to meet all incoming requirements in the form of container ships. In most of the studied terminals, when choosing to lift and transporting equipment, they proceed from mathematical formulas [1-4], [8-11]. This approach leads to downtime for vehicles, and in some cases, downtime of lifting and transport machines. In this connection, in this study, the task of applying the queuing theory is posed, which makes it possible to establish the optimal duration of servicing a container terminal
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