Analysis of capacity of rolling stock used in regional passenger transport in different regions of Poland

This article assesses the impact of socio-economic factors and the amount of transport work done on the capacity of rolling stock used in passenger transport on selected railway lines located in various regions of Poland. The purpose of this article was to check the relationship between the capacity of rolling stock running on a railway line in regional passenger transport, and the socio-economic factors occurring in the area through which the analyzed railway line runs, and between volume of transport on this line. The analysis was carried out for 32 railway lines located in different voivodeships, with one main line and one local line selected from each voivodeship. The average number of seats in regional trains running on it was calculated for each of the analyzed lines. Then calculations of partial correlation coefficients were performed. During calculations, the average number of seats was used as a dependent variable, while socio-economic factors affecting the size of passenger flows and the amount of transport work done were used as independent values. The calculation used the transport data and socio-economic factors that occurred in 2018. The calculations showed that there is a clear relationship between the rolling stock capacity and the amount of transport work done. On lines where more transport work is done, more capacious rolling stock also runs. On the other hand, the dependence of rolling stock capacity on socio-economic factors affecting the size of passenger flows is small.