Table 4.

k-θ Model versus MEPDG Model.

		k-θ Model				MEPDG Model
		k 1	k 2	R 2	Adj R 2	k 1	k 2	k 3	R 2	Adj R 2
Gravel	5% fine	2852.44	0.58176	0.9758	0.974	698.135	0.72883	−0.15741	0.9934	0.9923
	10% fine	2664.44	0.5778	0.9772	0.9754	643.1336	0.72655	−0.15921	0.9954	0.9946
Crushed stone	5% fine	2426.56	0.62827	0.9737	0.9717	635.3096	0.80524	−0.18942	0.9955	0.9947
	10% fine	1334.471	0.76537	0.9662	0.9636	506.1193	0.94124	−0.18825	0.9805	0.9773