Wednesday, March 13, 2024

"China puts trust in AI to maintain largest high-speed rail network on Earth"

From the South China Morning Post, March 12:

  • The railway system is in better condition than when it was first built, according to peer-reviewed paper
  • Vast amounts of real-time data are processed by an artificial intelligence system in Beijing to identify problems before they arise, the engineers say

China is using artificial intelligence in the operation of its 45,000km (28,000-mile) high-speed rail network, with the technology achieving several milestones, according to engineers involved in the project.

An AI system in Beijing is processing vast amounts of real-time data from across the country and can alert maintenance teams of abnormal situations within 40 minutes, with an accuracy as high as 95 per cent, they said in a peer-reviewed paper.

“This helps on-site teams conduct reinspections and repairs as quickly as possible,” wrote Niu Daoan, a senior engineer at the China State Railway Group’s infrastructure inspection centre, in the paper published by the academic journal China Railway.

In the past year, none of China’s operational high-speed railway lines received a single warning that required speed reduction due to major track irregularity issues, while the number of minor track faults decreased by 80 per cent compared to the previous year.

According to the paper, the amplitude of rail movement caused by strong winds also decreased – even on massive valley-spanning bridges – with the application of AI technology.

Machine intelligence can predict and issue warnings before problems arise, enabling precise and timely maintenance that keeps the infrastructure of high-speed rail lines in better condition than when it was first built, according to the researchers....

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