Prediction of Bridge Component Ratings Using Ordinal Logistic Regression Model

Table 5

Performance improvements by ordinal model compared with multiple linear model.

Model Statistics	Model Performance Improvements Percentage
	Deck	Superstructure	Substructure
Sum of Absolute Residuals	13.47%	21.62%	7.56%
Sum of Residual Squares	20.97%	27.04%	12.47%
AIC	8.91%	12.81%	12.02%
LL	3.79%	8.48%	7.49%