![A driverless train on the Metro Line 9 in Chengdu City, Sichuan Province, Feb. 19, 2019. The automated train, which is 185 meters long and three meters wide, can carry up to 3,496 passengers. (Photo: China News Service/Liu Zhongjun)](http://www.ecns.cn/hd/2019/02/20/865f87ed2ed04a7aba6c9604e699991f.jpg)
A driverless train on the Metro Line 9 in Chengdu City, Sichuan Province, Feb. 19, 2019. The automated train, which is 185 meters long and three meters wide, can carry up to 3,496 passengers. (Photo: China News Service/Liu Zhongjun)
![A driverless train on the Metro Line 9 in Chengdu City, Sichuan Province, Feb. 19, 2019. The automated train, which is 185 meters long and three meters wide, can carry up to 3,496 passengers. (Photo: China News Service/Liu Zhongjun)](http://www.ecns.cn/hd/2019/02/20/adff846f063e4668baf42f89f04d48c2.jpg)
A driverless train on the Metro Line 9 in Chengdu City, Sichuan Province, Feb. 19, 2019. The automated train, which is 185 meters long and three meters wide, can carry up to 3,496 passengers. (Photo: China News Service/Liu Zhongjun)
![A driverless train on the Metro Line 9 in Chengdu City, Sichuan Province, Feb. 19, 2019. The automated train, which is 185 meters long and three meters wide, can carry up to 3,496 passengers. (Photo: China News Service/Liu Zhongjun)](http://www.ecns.cn/hd/2019/02/20/6926cd65ac3e438e81065637f3d3f69a.jpg)
A driverless train on the Metro Line 9 in Chengdu City, Sichuan Province, Feb. 19, 2019. The automated train, which is 185 meters long and three meters wide, can carry up to 3,496 passengers. (Photo: China News Service/Liu Zhongjun)
![A driverless train on the Metro Line 9 in Chengdu City, Sichuan Province, Feb. 19, 2019. The automated train, which is 185 meters long and three meters wide, can carry up to 3,496 passengers. (Photo: China News Service/Liu Zhongjun)](http://www.ecns.cn/hd/2019/02/20/50720de469ab4eec91481bc7415195c1.jpg)
A driverless train on the Metro Line 9 in Chengdu City, Sichuan Province, Feb. 19, 2019. The automated train, which is 185 meters long and three meters wide, can carry up to 3,496 passengers. (Photo: China News Service/Liu Zhongjun)
![A driverless train on the Metro Line 9 in Chengdu City, Sichuan Province, Feb. 19, 2019. The automated train, which is 185 meters long and three meters wide, can carry up to 3,496 passengers. (Photo: China News Service/Liu Zhongjun)](http://www.ecns.cn/hd/2019/02/20/ce09707ee1af4915bdb6319ec608a277.jpg)
A driverless train on the Metro Line 9 in Chengdu City, Sichuan Province, Feb. 19, 2019. The automated train, which is 185 meters long and three meters wide, can carry up to 3,496 passengers. (Photo: China News Service/Liu Zhongjun)