Figure 13
Two line graphs depict track irregularity and carbody vertical acceleration over a specific location range. Panel A shows a line graph of left track longitudinal irregularity with amplitude in millimeters on the vertical axis and location in kilometers on the horizontal axis. The amplitude values range from -2 to 2 millimeters. The graph displays a periodic pattern with peaks and troughs. Panel B shows a line graph of carbody vertical acceleration with amplitude in g on the vertical axis and location in kilometers on the horizontal axis. The amplitude values range from -0.02 to 0.02 g. This graph also displays a periodic pattern with peaks and troughs.Absolute correlation coefficient = 0.75. Source(s): Author's own work