Predicting Work Zone Collision Probabilities via Clustering: Application in Optimal Deployment of Highway Response Teams

Table 3

Aggregated accuracy metrics of various methods for selecting the best model (smaller numbers indicate better accuracy).

	Silhouette	Cross-Validation	Elbow
Mean	0.36365	0.40575	0.44222
Std. dev.	0.28405	0.42113	0.43249