Predicting Freeway Work Zone Delays and Costs with a Hybrid Machine-Learning Model

Table 1

RMSE of the three models (km/h).

Number of lanes per direction	Number of tested work zones	Model 1	Model 2	Model 3
2	5	6.2	6.1	3.9
3	9	8.2	5.8	3.6
4 and more	4	6.9	6.7	4.4
Overall		7.3	6.1	3.9