Pavement Performance Index of the New Decay Model and its Application

Pavement performance forecast is the foundation for good pavement maintenance management, and the accurate prediction of the premise is to create a simple and reasonable equation. At present, many countries and regions present a variety of pavement performance models. However, each model of pavement performance has certain limitations. This paper gives a decay model of the deterioration equation for pavement performance, which has a simple form and clear physical significance. The model has been used in pavement preventive maintenance management system development and obtained the certificate of computer software copyright registration (Registration Number: 2011SR066875 issued by the national copyright administration of the People's Republic of China), and the reliability of the model is proved by engineering applications. The model can be used for asphalt pavement performance evaluation, maintenance priority arrangement, and maintenance funds decision analysis.