Abstract
The new evaluation for pavement cracks by fractal was proposed by the authors before. The spatial variation of the pavement profiles is evaluated with the fractional Brownian function characterized by fractal dimension. The spatial variation for real pavement had been observed for five years. The observed fractal dimensions of the pavement profiles were increasing every year and correlated with the standard deviation of the vertical displacement very well. The fractal dimension of the profiles can be also applied to the travel comfort. We would like to propose this new parameter, a fractal dimension, as a pavement serviceability index.
