Evaluating the Effect of Roadway and Development Factors on the Rural Road Safety Risk Index

Table 6

Proposed model for the analysis of the accident frequency rate for the clusters.

General model Gaussian	Coefficients (with 95% confidence bounds)			Goodness of fit
	a1	b1	c1	SSE	R-square	Adjusted R-square	RMSE
	1.93	−4.82	13.70	0.51	0.77	0.61	0.41

Note. SSE: the sum of the squared errors; RMSE: root mean square error.