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Chinese railway network combines speed, scale, and proprietary technology in a system that connects major cities, reduces travel, and alters the competition with airplanes on short and medium domestic routes.
China operates the largest high-speed rail network in the world and has placed the bullet train at the center of its national integration, with commercial trips up to 350 km/h, coverage in almost all major cities, and tests of the CR450 model above 450 km/h.
On the line between Beijing and Shanghai, one of the main routes of the system, the journey of 1,318 kilometers is completed in just over four hours, connecting two of China’s largest economic centers through high-speed rail transport.
Besides speed, the scale of the infrastructure helps explain the change in travel patterns in the country, as the Chinese high-speed network reached 50.4 thousand kilometers in January 2026.
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According to data cited by Le Monde based on China State Railway, this extension corresponds to 70% of the global high-speed train network, placing China in a leading position in operational kilometers of this type of transport.
Largest bullet train network in the world
The expansion began in 2008, with the line between Beijing and Tianjin, inaugurated in the context of the Beijing Olympic Games, and gained scale with state coordination, investment in technology, and continuous construction of railway infrastructure.
During the 14th Chinese Five-Year Plan, between 2021 and 2025, the network grew by 33%, with the addition of 2,862 kilometers just in 2025, according to data cited by Le Monde.
In the same period, high-speed trains recorded 4.26 billion passenger trips in 2025, a number that shows the extent of daily use of this mode in the Chinese transport system.
The network’s coverage also indicates the territorial reach of the project, as the service currently reaches 97% of Chinese cities with more than 500 thousand inhabitants.
With this presence, the network connects metropolises, industrial hubs, and less central regions in a single travel structure, reducing travel time between large urban areas.
In commercial service, the normally allowed limit is 350 km/h, a speed that reduces travel time in corridors where airplanes and road transport also compete for passengers.
CR450 tests a new phase of high-speed
The Chinese advancement combined initial acquisition of foreign technology with local development of components, control systems, and new train models, in a process similar to that adopted by the country in other infrastructure and industry sectors.
The new generation CR450 represents the latest stage of this technological development, as it was designed to reach speeds higher than those currently practiced in commercial passenger service.
In tests conducted on October 20, 2025, the model reached 453 km/h, a mark above the currently authorized commercial speed, according to information cited by Le Monde.
In the train’s composition, carbon fiber and magnesium alloy bodywork, aluminum sleepers, intelligent sensors, and a permanent magnet traction system were used.
These features were associated with weight reduction, aerodynamic resistance, and energy consumption, according to the technical information available about the model.
With this evolution, the main components of the CR450 began to be designed and produced in China itself, reducing dependence on foreign suppliers for critical items previously associated with groups like Siemens and Alstom.
High-speed train changes domestic routes
The growth of high-speed trains has altered the dynamics of Chinese domestic transport, especially on short and medium routes, where the total travel time influences passenger choice.
A survey by Cirium Ascend Consultancy, published on August 20, 2025, indicated that the share of domestic flights up to 800 kilometers fell from 26.4% in the first quarter of 2011 to 15.9% in the first quarter of 2025.
The consultancy attributes this change to the advancement of the railway network, the location of stations, and the simpler boarding experience on high-speed trains.
According to Cirium, railway stations of this type are usually located 10 or 15 kilometers from urban centers, which reduces part of the access time before the trip.
In Chinese airports, the average distance from central areas is between 25 and 40 kilometers, a factor that increases the necessary ground travel before boarding.
In sections where the flight itself is short, this additional time can reduce the operational advantage of air transport compared to high-speed trains.
For travelers from first-tier cities, like Beijing and Shanghai, Cirium estimated an average time of 120 minutes between leaving home and completing security inspection at the airport.
In the case of railway stations, the consultancy calculated 75 minutes for the same interval, considering the travel to the terminal and security procedures before departure.
Chinese aviation adjusts its strategy
The railway expansion did not eliminate the demand for air transport, but it changed part of the companies’ strategy on domestic routes, especially on shorter connections.
Between 2011 and the first quarter of 2025, the average distance of Chinese domestic flights rose from 1,477 kilometers to 1,610 kilometers, according to Cirium Ascend Consultancy.
In the consultancy’s assessment, companies have started to direct more capacity to medium and long routes, international markets, and regions where railway coverage does not yet offer competition equivalent to the main high-speed connections.
This movement indicates a greater division between modes within Chinese transportation, with the bullet train concentrating part of the short and medium trips and the airplane maintaining a greater weight on longer distances.
In a country of continental dimension, high-speed rail has become part of a transportation system where each mode serves different ranges of distance, demand, and operational convenience.
China still plans to expand the network in the coming years, according to the plan cited by Le Monde, which indicates about 60,000 kilometers by 2030.
With the planned expansion and the testing of faster models, high-speed rail remains one of the main structures of territorial and technological integration in the country.
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