Bullet trains cross at high speed
Print Edition
TWO Chinese trains speeding at 420 km/hour in opposite directions passed each other on parallel tracks yesterday in the latest feat achieved by China in high-speed rail.
At about 11:20am, the two trains, “Golden Phoenix” and “Dolphin Blue,” crossed the lines between Zhengzhou in Henan Province and Xuzhou in Jiangsu Province.
The China-standard bullet trains, officially known as electric multiple unit trains, are the first in the world to cross at such a high speed, said Zhou Li, head of the technological management department of China Railway Corporation, the national rail service operator.
“The success of the test indicates China has fully domesticated the core technologies of high-speed EMUs,” he said, adding that it is very significant for the branding and export of Chinese high-speed trains.
The two trains were only 1.6 meters apart when they met. Their passengers, a group of technicians and journalists, felt only a slight jolt during the encounter as the two vehicles shared a relative speed of 840 km/hour, equivalent to a cruising airliner.
Making the experiment even more extraordinary, Golden Phoenix and Dolphin Blue each consists of two trains coupled together, different models made by two different companies, both subsidiaries of China Railway Rolling Stock Corporation.
The coupling is very demanding technologically in terms of synchronized pulling, braking and the sophistication of key components, said Zhao Hongwei, a researcher at the China Academy of Railway Sciences.
The “coupled running” test at high speed will help establish uniform standards for the technology, operation and maintenance of trains, said Ma Lijun, deputy general manager of CRRC Qingdao Sifang, which made one of the trains.
China began research and manufacturing of its EMU train in 2012 and officially launched it in June 2015, successfully testing it at 385km/hour later that year. It now boasts the world’s largest EMU fleet, with a total of 2,395 trains, and the world greatest cumulative length of high-speed railway, at 19,000km, or 60 percent of the world’s total.
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