Review the development context of China's high-speed rail

As early as when the Beijing-Tianjin intercity was opened in 2008, the transformation from being able to "follow" to "run side by side" and "leading" in China already demonstrated China's ambitions and investment in high-speed rail technology.

Government documents and financial reports show that over the past 17 years, the central and local governments have invested more than 2 trillion yuan in high-speed rail network construction and supporting industries.

At the same time, the technical digestion, re-development, and innovative iteration carried out by China Railway Corporation and local railway bureaus have enabled almost all key technical links to be independent and controllable from power traction, signal control to rail materials, operation and maintenance.

It is supported by such a complete industrial closed loop that Fuxing has become the world's first high-speed train with a design capability of 350 kilometers per hour and continuously and stably operating on multiple lines.

This time, the entire trip between Tianjin and Beijing was less than 30 minutes. The precise dispatch and stable operation also reflect the dual control of safety and efficiency of China's high-speed rail.

In contrast, it has become a common practice for international heads of state to take special planes. High-speed rail only occurs occasionally on short-distance itineraries in a few European countries, but such collective demonstrations have never occurred.

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In July this year, the CR450 EMU sample car debuted at the China International Modern Rail Transit Equipment Exhibition in Beijing.

Both official press releases and industry media reports pointed out that the model is designed to speed 400 kilometers per hour, with a test rate up to 450 kilometers, and adopts a new generation of permanent magnet synchronous traction technology and a more efficient train control signal system.

More importantly, technologies such as lightweighting, aerodynamic optimization and energy recovery in the whole vehicle have enabled it to achieve a better balance between power output and energy consumption control, laying a solid foundation for future ultra-high-speed commercial operations.

In fact, the development of China's high-speed rail is no longer limited to the combination of "rail track train".

Ball-free track materials, switch manufacturing processes, high-precision laser rail inspection equipment, intelligent scheduling platforms, and even big data and artificial intelligence-assisted prediction and maintenance systems have been put into use on many trunk lines in China and have significantly improved operating stability and maintenance efficiency.

The independent control of these entire industrial chain links enables China's high-speed rail foreign cooperation to export technology, and can also provide differentiated customized solutions based on the climate, geology and economic carrying capacity of the countries along the route to form a more competitive "high-speed rail overall solution".

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Go back to this event itself

The choice of heads of state to take the high-speed rail is not only a vivid endorsement of the strength of "Made in China" and also a declaration of the era of green and low-carbon concepts. According to the latest carbon emission monitoring data from China Railway Corporation, the per capita carbon emissions of high-speed rails are about 60% lower than flights at the same distance.

Against the backdrop of global advocacy for sustainable development, such intuitive demonstration is of great significance.

Of course, while China's high-speed rail has achieved considerable achievements, it also faces real challenges such as increased line follow-up operation costs and maintenance investment, and weak returns of some medium and low-density lines.

However, in the long run, with the gradual investment of technological upgrade models such as CR450, the improvement of intelligent scheduling and precise maintenance systems, and the advancement of the "Belt and Road" high-speed rail export project, China's high-speed rail will enter a new stage with "comprehensive benefits" and "international influence" as the core.

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