Planning the operational procedures in a railway marshalling yard is a complex problem. When a train arrives at a marshalling yard, it is uncoupled on an arrival yard and then its cars are rolled to a classification yard. All cars should eventually be rolled to the classification track that has been assigned to the train they're supposed to depart with. However, there is normally not enough cap...

Efficient and correct freight train marshalling is vital for high quality carload freight transportations. During marshalling, it is desirable that cars are sorted according to their individual drop-off locations in the outbound freight trains. Furthermore, practical limitations such as non-uniform and limited track lengths and the arrival and departure times of trains need to be considered. Th...

This paper deals with a simulation model of technological procedures in a marshalling yard. The structure of the model and its properties are described from the point of view of a user. Attention is paid namely to its flexibility and built in capacities of cooperative solution of problems during the simulation run.

Object: The purpose of this article is about using simulation modeling, and the choice environment in study marshalling yards. Predicting approach trains to yards for different time periods an essential tool detailed planning its operation. Methods: To research operation sorting stations, method was chosen. includes: agent-based system dynamics, discrete-event modeling. process arrival, process...

Since the last two decades, container transportation system has been faced under increasing development. This fact shows the importance of container transportation system as a key role of container terminals to link between sea and land. Therefore, there is a continuous need for the optimal use of equipment and facilities in the ports. Regarding the complex structure of container ports, this pa...

The paper considers the principles of parallelization at marshalling yards and determines their importance. There are presented methods for direct decompositions torsion-free Abelian groups finite rank. applied concepts “conditionally linear graphs” depicting railway trains characteristics, including “quasi-length”, which characterizes length corresponding “quasi-graph”. has been formalized a g...