Figure 12
The image contains two line graphs side by side. The left graph, titled 'Left track longitudinal irregularity,' shows amplitude in millimeters on the y-axis and location in kilometers on the x-axis. The right graph, titled 'Carbody vertical acceleration,' shows amplitude in g on the y-axis and location in kilometers on the x-axis. Both graphs display data over a range of locations from 283.9 to 284.3 kilometers. The left graph has a blue line indicating variations in track irregularity, while the right graph has an orange line indicating variations in carbody vertical acceleration. The graphs illustrate the relationship between track irregularities and the resulting vertical acceleration of the carbody.Absolute correlation coefficient = 0.6. Source(s): Author's own work