Abstract
In general, "Vertical Vibration of passing vehicles" (induced by road profile) influences dynamic load of the vehicles. We assumed that the structural damage of the pavement was predictable if the relationships between a road profile and a dynamic load could be clear. To verify this assumption, we conducted several experiments. First of all, the method of calculating a dynamic load from the road profile was examined. Next, according to this result, the influence of the road profile and the transport speed of passing vehicles on a dynamic load was theoretically analyzed. Finally, the relationships between the structural damage of the pavement affected by the dynamic load and the road profile was examined associated with LTTP data. Based on these studies, it was confirmed that high correlation between "Modifying Coefficient of Dynamic Load" (developed as an evaluation index of the dynamic load) and the pavement deflection measured by the FWD. In this paper, it was concluded that the structural damage of the pavement could be simply obtained by the road profile data.
