Data from a special thoroughfare of a diagnostic complex along the operating lines of Russian Railways were used to analyse the actual distribution of types and magnitudes of malfunctions, the number and causes of the speed limits.

The authors used computer simulations to determine the dynamic indicators of cars in accordance with the algorithm of the deterministic method for calculating the movement of cars along the railway track. The consequences for assessing the state of the track from the standards specified in Instruction 436/r are analysed.

The authors presented the results of mathematical modelling of the rolling stock interaction with the track, confirming the feasibility of the proposed changes in the standards: increasing the permissible speeds of passenger trains, assessing the gauge widening in curved sections, clarifying the estimates of unbalanced acceleration.

Video: https://rzdtv.ru/2024/05/27/vypusk-8-boris-zenzinov

Electronic version of the article: https://www.journal-vniizht.ru/jour/article/view/649/418