Figure 2
A scatter plot showing the relationship between the share of transit trains, length of railway, and speed. The x-axis represents the share of transit trains in percentage, the y-axis represents speed in kilometers per hour, and the z-axis represents the length of railway in kilometers. The plot includes hundreds of data points, with a surface described by linear regression and true values indicated by dots. The data points are color-coded, transitioning from purple to yellow as the values increase. The plot shows a positive correlation between the share of transit trains, length of railway, and speed. All values are approximated.Dependence of average speed on block-section length. Points: actual data from the full dataset; lines: predictions from KAN (red), linear regression (blue) and gplearn (orange) symbolic formulas