[1] Nanjing Univ Aeronaut & Astronaut, Coll Econ & Management, Nanjing 211106, Peoples R China
[2] Nanjing Technol Univ, Coll Civil Engn, Nanjing 211816, Peoples R China
[3] BNSF Railway, 2650 Lou Menk Dr, Ft Worth, TX 76131 USA
[4] Southeast Univ, Coll Civil Engn, Nanjing 211189, Peoples R China
[5] George Mason Univ, Coll Engn, Fairfax, VA 22031 USA