1. Guangxi Baining Expressway Co., Ltd., Nanning 533800, China
2. Guangxi Key Lab of Road Structure and Materials, Nanning 530007, China
3. Guangxi Hetian Expressway Co., Ltd., Nanning 530022, China
4. Guangxi Transportation Science and Technology Group Co., Ltd., Nanning 530007, China
5. School of Traffic and Transportation Engineering, Changsha University of Science and Technology, Changsha 410114, China
6. College of Transportation, Jilin University, Changchun 130025, China