Pavement texture evolution under traffic wear critically influences skid resistance, yet existing Persson’s friction theory lacks validated parameters for dynamic texture changes. This study establishes novel approaches to determine key parameters, lower cutoff wavenumber q 1 and tire rubber-pavement contact ratio, aligned with wear progression. Experimental results demonstrate that (i) setting q 1 to 500 times the roll-off wavenumber q 0 outperforms the root-mean-square slope criterion for worn surfaces, yielding friction predictions consistent with experimental trends. (ii) The contact ratio, derived inversely from Persson’s friction theory, exhibits a strong negative linear correlation (R 2=0.94) with the coefficient of friction and increases with wear severity. These parameters enable accurate friction prediction across pavement lifecycles, advancing non-contact skid resistance management.