FORMALIZATION OF MULTIMODAL TRUCK TRANSPORTATION AS A MULTI-STAGE AND MULTI-OBJECTIVE TRANSPORT PROBLEM

The article examines the transport model of costs for transportation on multimodal routes for the movement of goods, depending on the time in transit, because this approach to the optimization of multimodal transportation of goods in modern conditions is called for their development in the transport market of Ukraine and the world. The analysis of the latest research and publications showed that the process of transportation under the control of a multimodal transportation operator is not considered, the use of this approach in the interaction of modes of transport is not taken into account, that the goal of synchromodal optimization is to determine a synchronized uninterrupted transportation system, and this study was developed for this purpose. In order to set the problem, a research principle scheme was formed, which includes a set of sources of material flows, a set of points of movement of material flows, a set of destination points of material flows and a set of multimodal transportation routes. According to the central limit theorem, taking into account a large number of transport units, customers of multimodal transportation services and consignees, the distribution of the sum of independent identically distributed random variables converges to the normal distribution law. The implementation of the developed model in the conditions of the organization of multimodal routes on the territory of Ukraine with the participation of railway transport showed that for the averaged initial data it is possible to obtain an optimal solution for optimizing the costs of moving transport loads and optimizing the time spent on the multimodal route. The developed model can be considered quite universal in its structure, while only the parameters of the model will change, which depends on the specifics of the performed cargo operations with individual types of cargo upon arrival or departure.