A Behavioral Model of Drivers’ Mean Speed Influenced by Weather Conditions, Road Geometry, and Driver Characteristics Using a Driving Simulator Study

Table 7

Fit statistics for structural equation model.

Fit index	Value	Criteria of good fit
Chi-square/degree of freedom (CMIN/DF)	2.360	<3
Root mean square error of approximation (RMSEA)	0.032	≤0.08
Goodness-of-fit index (GFI)	0.966	0.9≤
Adjusted goodness-of-fit index (AGFI)	0.953	0.9≤
The parsimonious normal fit index (PNFI)	0.582	0.5<
Comparative fit index (CFI)	0.958	0.9≤
Root mean square residual (RMR)	0.008	Good models have small RMR