Which factor can lead to premature failure of asphalt pavements?

Excessive traffic loads significantly contribute to the premature failure of asphalt pavements. When pavements are subjected to loads beyond their designed capacity, it can cause various forms of distress, such as cracking, rutting, and surface deformation. Over time, these stresses accumulate, leading to a reduction in the structural integrity of the asphalt layer.

Proper material selection, timely maintenance intervention, and correct installation practices are all essential components that help ensure the longevity and performance of asphalt pavements. If any of these factors are adequately addressed, they can mitigate the risk of failure. However, when pavements experience loads exceeding their design parameters—either due to an increase in traffic volume, heavier vehicles, or both—the pavement system's performance is compromised, making excessive traffic loads a primary factor in premature failure.