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

Table 4

Examination of the ANOVA test of variables in the clusters.

ANOVA
Variables	Cluster		Error		F	Sig.
	Mean square	df	Mean square	df
Operating speed	2669.37	5	27.74	100	96.21	0.000
Difference between posted speed and operating speed	5174.64	5	37.82	100	136.81	0.000
Segment length	1.04	5	0.76	100	1.37	0.241
Volume	37.55	5	19.57	100	1.92	0.098
Presence or absence of a speed control camera	0.01	5	0.03	100	0.47	0.796
Homogeneous sections	2.97	5	3.93	100	0.76	0.583
Gradient	0.11	5	0.90	100	0.12	0.988
Dominant land uses along the roadways	2.01	5	0.80	100	2.52	0.034
Number of accessibility	18.55	5	5.00	100	3.71	0.004
Accident frequency rate	5.88	5	1.89	100	3.10	0.012

Note. All the italic coefficients are not statistically significant. It is significant at the 0.05 level.