Research Article
Monthly Attenuation Prediction for Asphalt Pavement Performance by Using GM (1, 1) Model
Table 10
Predicted monthly attenuations of PQI for three representative lines of the main trunk highway in Hunan Province.
| | Monthly attenuation of measured and predicted PQI | 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 | — | | — | | 0.1267 | 0.1267 | 2013/month | 0.1725 | 0.1725 | 0.1367 | 0.1367 | 0.3025 | 0.3102 | 2014/month | 0.4567 | 0.4555 | 0.3700 | 0.3743 | 0.2467 | 0.3126 | 2015/month | 0.4275 | 0.4297 | 0.3700 | 0.3592 | 0.4692 | 0.3151 | 2016/month | 0.4067 | 0.4050 | 0.3367 | 0.3447 | 0.2367 | 0.3177 | 2017/month | 0.3825 | 0.3824 | 0.3325 | 0.3307 | 0.3208 | 0.3202 | 2018/month | | 0.3608 | | 0.3174 | | 0.3228 | 2019/month | | 0.3403 | | 0.3045 | | 0.3254 |
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