1. School of Civil and Transportation Engineering, Henan University of Urban Construction, Pingdingshan, People’s Republic of China
2. Beijing Key Laboratory of Traffic Engineering, Faculty of Architecture, Civil and Transportation Engineering, Beijing University of Technology, Beijing, People’s Republic of China
3. Institute of Highway Engineering, RWTH Aachen University, Aachen, Germany
4. College of Mathematics and Science, Henan University of Urban Construction, Pingdingshan, People’s Republic of China