Prediction of Highway Tunnel Pavement Performance Based on Digital Twin and Multiple Time Series Stacking

Table 6

Pavement performance evaluation criteria.

The evaluation indicator	Superior (A)	Good (B)	Qualified (C)	Unqualified (D)
Expressway	≤2.6	＞2.6, ≤4.1	＞4.1, ≤7.3	＞7.3
Primary and secondary arterial highways	≤4.1	＞4.1, ≤5.7	＞5.7, ≤7.8	＞7.8
Branch pavement	≤4.6	＞4.6, ≤6.6	＞6.6, ≤8.3	＞8.3