The effects of frost heave on the longitudinal profile of asphalt pavements in cold regions

Provided is the longitudinal profile of an expressway in a cold region in Japan that was measured weekly during winter using inertial profiler. The International Roughness Index (ITI) calculated from the measured profiles was analyzed to determine its seasonal changes during the coldest period. Multiresolution decomposition using a wavelet was applied to the longitudinal profile to analyze the wave characteristics of the profile affected by frost heave.