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Item Development of Technology of Arranging Areas with Transitional Stiffness Index on Approaches to Railway Bridges(Дніпропетровський національний університет залізничного транспорту імені академіка В. Лазаряна, Дніпро, 2018) Marochka, Vitalii V.; Boboshko, Stepan H.EN: Purpose. To investigate the issue of transitional rigidity on the railways of Ukraine, to form a complex of existing measures to strengthen the transitional sections, to develop and justify the solution to the problem of transitional stiffness on approaches to railway bridges. Methodology. Theoretical research methods analysis and synthesis has been used. For mathematical modeling of the structure, a finite element method has been used - a three-dimensional mathematical model was created with stiffnesses corresponding to real ones, and loaded by static load of the rolling stock. Findings. The analysis of the literature and the experience of developed countries on the issue of arranging areas with transitional stiffness index on approaches to railway bridges, proposed and developed a solution for amplifying sections with transitional stiffness, a theoretical calculation of the mathematical model of the corresponding areas was developed the working draft for arranging areas with transitional stiffness index on approaches to railway bridges has been designed. Originality. The technology of amplification of areas with transitional stiffness has been proposed, a model of a section with a transitional stiffness index has been developed and constructed in the first approximation. Practical value. Developed construction of soil-cement piles allows to enhance areas with transitional stiffness index on approaches to railway bridges. The obtained data open up new possibilities in the experimental study of areas with a transitional stiffness index.