IMPROVING THE FORMULATION OF THE BASIC INTERREGIONAL INPUT-OUTPUT OPTIMIZATION MODEL OF RAIL TRANSPORT TO INCREASE ITS FLEXIBILITY IN EVALUATING LARGE-SCALE RAILWAY PROJECTS
M.V. Pyataev1, A.N. Sizov2
1Siberian Transport University, Novosibirsk, Russia
2Budker Institute of Nuclear Physics, Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia
Keywords: железнодорожный транспорт, макроэкономическая оценка, крупномасштабные железнодорожные проекты, ОМММ-ЖДТ, ОМММ, взаимные задачи, rail transport, macroeconomic evaluation, large-scale railway projects, OMMM-RT, dual problems
Abstract
The article considers a modified interregional input-output optimization model of rail transport (OMMM-RT), namely the one with an additional algorithm and module using the theory of dual problems by K.A. Bagrinovsky and A.G. Aganbegyan but as applied to large-scale capital investments in general. We calculate the final consumption fund in the initial OMMM-RT model; following this operation, based on the dual problem theory, the obtained value of the final consumption fund serves as a lower boundary. In our case, the dual problem consists in minimizing the amount of capital investment in large-scale railway projects. The article proves that the same conditions as in finding the maximum of a target function lead to a solution for the problem with lower capital investment.
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