1. Federal Law of the Russian Federation 247-FZ «On mandatory requirements in the Russian Federation» of July 31, 2020.
2. SR 238.1326000 (2015). Railway track.
3. Y. L. Han, J. of railway engineering society 31, pp. 37–43 (2014).
4. I. V. Turbin, Railway Survey and Design (Training Manual, Rostov-on-Don, 2017), p. 38.
5. P. S. Dzenis and V. R. Reinfeld, Spatial design of highways (Izd-vo Transport, Moscow, 1968).