Research Article
Monthly Attenuation Prediction for Asphalt Pavement Performance by Using GM (1, 1) Model
Table 9
Monthly attenuation prediction of three typical expressway pavements of the Hunan main highway.
| | Monthly attenuation of measured and predicted PCI | Line 1 measured value | Line 1 predicted value | Line 2 measured value | Line 2 predicted value | Line 3 measured value | Line 3 predicted value |
| 2012/month | — | | — | | 0.1467 | 0.1467 | 2013/month | 0.1550 | 0.1150 | 0.2008 | 0.2008 | 0.4075 | 0.4326 | 2014/month | 0.6308 | 0.6338 | 0.5583 | 0.5108 | 0.4008 | 0.4274 | 2015/month | 0.5950 | 0.5878 | 0.3417 | 0.4461 | 0.5542 | 0.4223 | 2016/month | 0.5042 | 0.5452 | 0.4483 | 0.3896 | 0.3358 | 0.4172 | 2017/month | 0.5058 | 0.5057 | 0.3417 | 0.3402 | 0.4133 | 0.4122 | 2018/month | | 0.4690 | | 0.2971 | | 0.4073 | 2019/month | | 0.4350 | | 0.2595 | | 0.4024 |
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