China is known as the country with the largest and fastest railway network in the world, with a high-speed railway network already in operation stretching over 50,400 kilometers.
Over the past two decades, this country has successfully developed a modern rail transportation system connecting thousands of kilometers of territory with a very high level of operational safety. This success is supported not only by high-speed train technology but also by the implementation of strict, integrated, and digital-based safety protocols.
China itself experienced a tragic train accident in Wenzhou in 2011 that claimed dozens of lives. The incident marked a turning point in national rail safety reforms.
Following the accident, the Chinese government conducted a major audit of signaling systems, evaluated train control technology, improved inspection standards, tightened operator certification, and modernized communications systems. These reforms resulted in significant improvements in the safety of China's high-speed trains over the following decade.
A tourist plays in a rapeseed flower field as a high-speed train passes by in Longmatan District, Luzhou, Sichuan Province, China, on Feb. 26, 2026. (Xinhua/Mou Ke)
One of the main pillars of China's railway safety is the implementation of the Chinese Train Control System (CTCS), an automated train control system developed specifically for China's national rail network.
This system has the main function of automatically controlling train speed, avoiding collisions between trains, setting a safe travel distance, providing automatic braking protection, and monitoring the train's position in real-time.
CTCS itself consists of several technology levels, ranging from CTCS-0 to CTCS-4. On modern high-speed railways, China generally uses CTCS-3, which supports GSM-R-based two-way digital communications between trains and the control center.
In the CTCS-3 system, the train position is monitored continuously, the control center can issue travel permits in real-time, the system will automatically activate the brakes if the driver exceeds the speed limit, while the train track is monitored using balises, track circuits, and radio block centers.
The technology has similar functionality to the ETCS Level 2 system in Europe and is considered one of the most advanced train control systems in the world.
China has implemented a national control center-based operating system capable of simultaneously monitoring train traffic. All high-speed train journeys are monitored through the Traffic Control Center (TCC), Radio Block Center (RBC), GSM-R communication system, and AI- and big data-based digital monitoring.
This aerial photo taken with a drone on February 1, 2026, shows a row of high-speed trains preparing to enter service in Xi'an, Shaanxi Province, China. (Photo by Zhang Wen/Xinhua)
Rail safety in China relies heavily on a rigorous periodic inspection system. High-speed rail lines are inspected using high-speed inspection trains, rail vibration sensors, rail temperature monitoring, track surveillance drones, and AI cameras that detect cracks.
Inspections are conducted almost daily on the main high-speed rail lines. Sensor technology allows minor defects to be detected before they develop into system failures.
Furthermore, China implements the principle of preventive maintenance, which involves maintenance before damage occurs. This approach drastically reduces operational disruptions.
Inspections are conducted repeatedly during busy periods such as the New Year, Lunar New Year, and Labor Day holidays. During this year's Labor Day holiday alone, the number of passenger trips operated by China's railway network from April 29 to May 6 reached 159 million.
Regarding safety protocols, train drivers in China undergo very rigorous and standardized training. These protocols include national operator certification, emergency simulations, regular health checks, monitoring of working hours, and a ban on the use of personal devices while operating.
The driver's cabin is also equipped with a digital monitoring system that monitors the driver's concentration, response to signals, reaction speed, and the train's operational condition. If the driver doesn't respond within a certain time, the Automatic Train Protection (ATP ) system can automatically take over braking.
