Determination of the type and the length for the transition curves on the directions of high-speed train operation

In many countries around the world, a cubic parabola is used as transition curves in simplified form. Today, properties of mathematical are well studied, which can be curves. The object research process restructuring when organizing high-speed trains operation. use modern means modelling allows to add number dynamic characteristics for evaluation parameters motion curved sections tracks. Thus, with an increase speed curves, both values unbalanced acceleration and its change time, also velocity attenuation oscillations rolling stock moving from curve circular or direct section. On basis conducted research, it has been found that increasing vehicle movement range 120 200 km/h, length stabilization section increases at output curvature by average 20 m every 40 km/h. analysis showed correctly set correspond maximum radius curve, strength reliability bearing elements structure permanent way travel comfort fully ensured.