Multicriteria optimization of cargo flow distributions in the port transport and technological system

An integrated approach is being developed in mathematical modeling of railway transportation process which carried out in multimodal transport and technological system. A numerical method of multicriteria optimization is being proposed with the cost and time indicators. From the mathematical point of view this model is a problem of integer programming solvable in the software environment Maxima. As auxiliary results, the results obtained by the economic-geographical method of delimitation “influence areas” of the loading stations are used. The capabilities of analytical calculation system are used in construction of mathematically based and versatile picture of the oligopolistic freight market. Based on integrated assessment of transport and technological system infrastructure and taking into account cost of transport service the optimization model of freight transportation process is constructed. It is possible to find rational schemes of connections among loading stations and unloading stations in accordance with the interests of client, considered participants of transportation process and also taking into account operational situation at railway loop.