Application of the Empirical Bayes Method with the Finite Mixture Model for Identifying Accident-Prone Spots

Table 2

Modeling results of NB models for Periods 1 and 2.

Estimates	Period 1 (years 1997 and 1998)		Period 2 (years 1999, 2000, and 2001)
	Value	SE	Value	SE
Intercept	−7.836	0.497	−8.116	0.453
Ln(average daily traffic)	1.093	0.054	1.137	0.048
Lane width	−0.044	0.020	−0.055	0.018
Total shoulder width	−0.013	0.004	−0.012	0.004
Curve density	0.026	0.014	0.024	0.013
	0.825	0.062	0.792	0.049
Log-likelihood	2924.490		3409.444
AIC	5860.980		6830.880
BIC	5892.850		6862.763

SE: standard error.