Abstract
Based on the Canadian Long-Term Pavement Performance (C-LTPP) data, this paper chooses the road performance related data as variable factors. According to the Dipstick detection results, the characteristic values such as rut depth, wheel track width and cross section area are extracted to describe the rutting. This paper established the relationship between the pavement rutting and the cumulative service time, determined the rutting evaluation index, and proposed the pavement maintenance time threshold. Comparing the flexible layer overlay repair schemes used in various test points, it provides a reference for the pavement performance management decision-making and the road repair scheme design after repair.
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