1. School of Traffic and Transportation, Lanzhou Jiaotong University, P.O. Box 405 No. 88, Anning West Road Anning District, Lanzhou 730070, Gansu, China
2. School of Rail Transportation, Shandong Jiaotong University, No. 5001 Haitang Road, Changqing District, Jinan 250357, Shandong, China
3. State Key Laboratory of Rail Traffic Control and Safety, Beijing Jiaotong University, No. 3 Shangyuancun, Haidian District, Beijing 100044, China
4. China Railway Design Corporation, No. 109 East Seventh Road, Pilot Free Trade Zone, Tianjin 300308, China