Tech on track: 5 years of Beijing-Harbin HSR

Staff members carry out ATP operation training at the simulation training base of Chaoyang EMU Operations Workshop of China Railway Beijing Group Co., Ltd., Jan. 20, 2026. [Photo by ZhangYuxin/China.org.cn]

Beyond train inspection, a series of advanced on-site operations ensure the railway's smooth and safe running. Technicians use track inspection instruments to detect and analyze the condition of the rails, while precise leveling instruments monitor track elevation. At the same time, specialized teams conduct troubleshooting of the high-speed rail's overhead contact line power supply. They are then able to swiftly identify and address potential issues. These operations, supported by intelligent monitoring systems and digital tools, have enabled proactive maintenance and enhanced operational reliability across the entire line.