1. School of Economics and Management, Chang’an University, Xi’an, People’s Republic of China
2. Department of Low Carbon Research Center, Shaanxi Provincial Academy of Environmental Science, Xi’an, People’s Republic of China
3. School of Economics and Management, Tsinghua University, Beijing, People’s Republic of China
4. Department of Geotechnical Laboratory, Baoji Geotechnical Investigation & Surveying Institute, Baoji, People’s Republic of China
5. Department of Marketing, Xi’an Branch of Aerospace Science and Engineering System Simulation Technology (Beijing) Co., Ltd, Xi’an, People’s Republic of China
6. Key Laboratory of Road Construction Technology and Equipment, Ministry of Education, Chang’an University, Xi’an, People’s Republic of China