Effects of Revised Toll-by-Weight Policy on Truck Overloading Behavior and Bridge Infrastructure Damage Using Weigh-in-Motion Data: A Comparative Study in China

Table 5

T-copula performance in describing axle group weight and GVW correlation.

Truck type	Axle group configuration	Raw data rank correlation coefficient	T-copula function		Squared euclidean distance
			Kendall’s rank correlation coefficient	Degrees of freedom
T12	G-G2	0.89	0.88	11.55	2.87
T15	G-G2	0.86	0.85	34.78	1.21
T112	G–G2, G–G3, G2-G3	0.58, 0.82, 0.42	0.58, 0.81, 0.42	11.10	4.89
T115	G–G2, G–G3, G2-G3	0.55, 0.84, 0.40	0.54, 0.84, 0.40	6.71	13.08
T125	G–G2, G–G3, G2-G3	0.66, 0.85, 0.55	0.65, 0.85, 0.54	6.49	10.72
T129	G–G2, G–G3, G2-G3	0.49, 0.80, 0.31	0.44, 0.75, 0.22	5.81	12.41
T155	G–G2, G–G3, G2-G3	0.74, 0.84, 0.60	0.75, 0.85, 0.64	3.19	3.10
T159	G–G2, G–G3, G2-G3	0.70, 0.80, 0.52	0.70, 0.80, 0.52	3.80	12.25
T1129	G–G2, G–G3, G–G4, G2-G3,G2–G4,	0.38, 0.59, 0.80, 0.28, 0.28, 0.42	0.36, 0.60, 0.79, 0.27, 0.26, 0.43	4.48	18.15