Investigation of Contributing Factors to Traffic Crashes and Violations: A Random Parameter Multinomial Logit Approach

Table 3

Model performances for multinomial logit models (N = 34,019).

Model parameter	Multinomial logit model	Random parameters multinomial logit model
Number of parameters (K)	16	19
AIC	50183.4	50152.5
BIC	50318.4	50312.7
Log-likelihood function of the intercept-only model	−25489.8068
Log-likelihood of the model	−25075.69812	−25057.23749
McFadden’s pseudo R^2	0.01625	0.01697
Like-likelihood test:	828.21736	865.13862
	<0.0001	<0.0001