The analysis of rail sleeper displacements in the function of subgrade parameters

The paper discusses the issue of the quality of interaction between the basic elements of the railroad surface: the railway sleeper and the ballast in which the sleeper is immersed. The proper functioning of the various structural elements of the railroad tracks and their interconnection, the effect of which is the transfer of the operational load to the subgrade in the elastic range of stress, takes on particular relevance in the light of the ongoing modernization of the rail lines in Poland [Id-3 2009; Sancewicz 2012; Surowiecki 2011, 2012; Towpik 2011]. Its aim is to increase the speed of trains and improve the comfort of travelling [15]. The main attention was focused on the Abstract: