Research on the Prediction Model of the Friction Coefficient of Asphalt Pavement Based on Tire-Pavement Coupling

Table 8

Coefficients used for the predictive model of friction coefficient of asphalt pavement.

	a		b		c		d
X1	−	5.2989	＋	8.4980	＋	9.3854	−	2.7174
X2	＋	0.0169	＋	0.0223	−	0.0051	＋	0.0192
X3	＋	0.1430	−	0.1258	−	0.0398	−	0.1556
X4	−	22.6687	＋	27.9335	＋	3.0993	−	0.0219
C	＋	5.1314	−	16.7806	−	12.0751	＋	3.9483
K1	＋	0.1696	−	0.0440	−	0.1741	−	0.1181
K2	＋	1