Figure 14
A line graph with the y axis labeled ‘Vertical irregularities (m)’ ranging from negative 4 times 10 to the power of negative 3 to positive 3 times 10 to the power of negative 3 meters and the x axis labeled ‘Distance covered (m)’ ranging from 0 to 4000 meters. The graph displays a single data line representing vertical irregularities measured over the distance covered. The data line fluctuates between positive and negative values, indicating variations in vertical irregularities. All values are approximated.Measured tyre irregularities (from ADAMS VI-Rail) Source(s): Authors’ own work