Research Article

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

Table 8

ANOVA test for the proposed safety risk index.

Parameter estimates

ParameterEstimateStd. error95% confidence interval
Lower boundUpper bound
b11.010.070.841.18

ANOVAa
SourceSum of squaresdfMean squares
Regression231.741231.74
Residual1.2650.25
Uncorrected total233.006
Corrected total150.205

Dependent variable: risk value
a. R squared = 1 − (residual sum of squares)/(corrected sum of squares) = 0.99