1. Vice-Director, Research and Development Center on Pavement Maintenance, China Communications Construction Company, No. 17 Changyun Palace, Xisanhuanbei Rd., Haidian District, Beijing 100089, China; China Highway Engineering Consultants Corporation, No. 17 Changyun Palace, Xisanhuanbei Rd., Haidian District, Beijing 100089, China (corresponding author).
2. Director, Research and Development Center on Pavement Maintenance, China Communications Construction Company, No. 17 Changyun Palace, Xisanhuanbei Rd., Haidian District, Beijing 100089, China; China Highway Engineering Consultants Corporation, No. 17 Changyun Palace, Xisanhuanbei Rd., Haidian District, Beijing 100089, China.
3. China Highway Engineering Consultants Corporation, No. 17 Changyun Palace, Xisanhuanbei Rd., Haidian District, Beijing 100089, China.
4. Research and Development Center on Pavement Maintenance, China Communications Construction Company, No. 17 Changyun Palace, Xisanhuanbei Rd., Haidian District, Beijing 100089, China; China Highway Engineering Consultants Corporation, No. 17 Changyun Palace, Xisanhuanbei Rd., Haidian District, Beijing 100089, China.