EVALUATING LEAD-TIME IN COMPLEX SUPPLY CHAINS BY SIMULATION TECHNIQUE

The structure of the modern system of container transportation routes consisted of several interacting sub-systems whose operations are not synchronized and could not be synchronized is studied in the paper. Accordingly, the cargo transported and thus handling over between these trunk and feeder lines inevitably has to be stored at the ports of transshipment. As the consequence, the processes of cargo storage and accumulation could be regarded as a rational and efficient tool for bufferization of the flows with different parties and rhythmicity. It is stated in the paper that the modelling of interacting asynchronous shipping lines should consider coordination of the trunk and feeder routes in the transshipment ports. The model allows you to change the ships number used on a route in the consideration of the whole cargo flow system organization in order to define the necessary technological and technical characteristics of the ports. The manual experiments with the model would allow you to form the prior schedules of the trunk and feeder ships routes for the certain container flows or for the shipping lines working on the same routes or even for the certain ships. It is concluded that this approach can be used to define fair schedules, which would satisfy the participants of container shipping.A graph model of interacting trunk-feeder routes that enables to conduct the computer simulation experiments aimed at the predicting the lead-time of container shipments in the complex asynchronously functioning system of linear routes is presented in the paper. There are the results of experiments based on the actual container lines structure that prove the possibility of practical usage of the model as a tool in everyday activity of container line operators, freight forwarders, terminal operators and clients. Simultaneously a new direction of scientific researches, i. e. computer simulation of synchro-modal systems, is announced.

container line routes, trunk routes, feeder routes, routes conjunction, container storage, leadtime

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