Prediction Method of Asphalt Pavement Performance and Corrosion Based on Grey System Theory

Table 2

The monitoring value of average smoothness for prediction.

Month	Average smoothness
	Overtaking lane/mm	Traffic lane/mm	Emergency lane/mm
1	5.6	4.0	4.8
2	6.0	4.2	5.0
3	6.0	4.6	5.4
4	6.2	4.8	5.6
5	6.6	5.0	5.6
6	6.8	5.2	6.0
7	7.2	5.6	6.2