The performance prediction of asphalt pavement is an important part of pavement maintenance decision-making. Firstly, the key factors affecting the pavement performance attenuation was selected. And then the model of performance prediction and the law of performance development were studied with the reasonable performance evaluation index based on the combination prediction principle . Finally, the results show that, the combined forecasting model based on Grey Theory and regression analysis method was confirmed to be feasible, which could provide powerful guidance and help for the determination of maintenance time of expressway asphalt pavement.

CICTP