Pavement Performance Prediction Methods and Maintenance Cost Based on the Structure Load

Highway pavement performance gradually declines with the increase of highway life and traffic load times. In order to study the pavement performance decay rule, the paper considers the impact of pavement structure and traffic load matching relation on the pavement performance. The concept of pavement “structure - traffic index” is introduced, the decaying relation is established by considering “structure - traffic index”, highway surface evenness, pavement structure strength and pavement anti-sliding ability. Finally, the prediction model of highway routine maintenance cost model is set up. The department of transportation can use the result to plan the maintenance investment.