Research on Relationships among Different Disease Types of Cement Concrete Pavement Based on Structural Equation Model

Table 6

Path coefficients for original and modified SEM models.

Hypothesized paths	Original model				Modified model
	Estimate	SE	CR		Estimate	SE	CR
H1: pavement damage⟵joint diseases	0.162	0.035	4.588		0.174	0.036	4.793
H2: pavement damage⟵surface diseases	0.245	0.048	5.064		0.296	0.053	5.544
H3: pavement damage⟵vertical diseases	0.203	0.042	4.793		0.283	0.057	4.924
H4: pavement damage⟵repair diseases	0.061	0.043	1.378	0.182	na	na	na	na
H5: pavement damage⟵fracture diseases	0.059	0.046	1.242	0.216	na	na	na	na
H6: surface diseases⟵joint diseases	0.084	0.022	3.778		0.138	0.038	3.592
H7: vertical diseases⟵surface diseases	0.118	0.029	4.028		0.109	0.026	4.152
H8: fracture diseases⟵vertical diseases	0.068	0.019	3.538		na	na	na	na

Note. value < 0.001. “na” denotes “not applicable.”