China’s high-speed trains set another new record!
On April 21, two new Fuxing bullet trains for testing independently developed by China passed by
each other at a relative speed of 870 km/h, with each of them running at 435 km/h along a section
of the high-speed rail line between Jinan, east China’s Shandong province and Zhengzhou, central
China’s Henan province. This is the fastest closing speed among two trains in the world are able to
reach.
The new Fuxing bullet trains will offer the most important technical support and guidance for the
development of the CR450 project that aims to develop a new generation of high-speed trains
running above 400 km/h, as well as the construction of the safety demonstration lines for 350
km/h bullet trains.
“The closing speed of 870 km/h, in other words, means that it only takes 0.86 second for two
trains of the same length to pass by each other,” said an employee from China Railway, former
Ministry of Railways of China.
Shortly before the record was made, the two bullet trains had completed another test in which they
passed by each other at a relative speed of 806 km/h in a tunnel along a section of the high-speed
rail line between Zhengzhou and southwest China’s Chongqing municipality.
The CR450 project, which was started in 2021, aims to develop more environmentally friendly,
more energy-saving and more intelligent Fuxing bullet trains that better suit the 5G-enabled
operation in the future.
“The new train is a world-leading model developed by China Railway in cooperation with Chinese
enterprises, universities and institutes engaged in the design and manufacturing of high-speed
trains. It is inspired by the intelligent bullet trains running along the Beijing-Zhangjiakou high-
speed rail,” said the head of China Railway’s Department of Science, Technology and Information
Technology.
The new Fuxing model is equipped with nine new technologies independently developed by
China, including eddy current braking, carbon ceramic braking, permanent magnet traction system
and pantograph active control. Consisting of four power cars and four non-powered cars, the train
features enhanced safety, reliability, as well as power and economical efficiency. It is a world-
leading train in terms of its comprehensive performance and showcases many new groundbreaking
Chinese technologies.
An employee told People’s Daily that train meets are unavoidable along high-speed rail tracks,
and when a bullet train traveling in one direction passes by another that goes in the opposite
direction, the hard air flow around the trains may lead to an instantaneous wind pressure of 5 to 10
kPa, which will make fierce vibration of the cars, thus lowering comfort level and even making
safety troubles.”
“That’s why China has always been conducting train meet experiments for bullet trains,” the
employee said.
Since April, the new model has completed over 60 tests on regular tracks and in tunnels to
evaluate its dynamics, aerodynamics, resistance, noise and other performance in high-speed
operation and train meet scenarios. These tests obtained data of the bullet train model, the
roadbed, the tunnels and other infrastructure under different working conditions, and revealed the
rules of how safety and comfort indexes of the train vary as it speeds up.
China Railway said the successful tests of the train demonstrated the performance of new
technologies and equipment and project practice experience of China’s high-speed rail. They are
of important significance for improving China’s independence in railway technology and
consolidating the country’s leading position in the sector.
