Yibin–Guiyang ~ Chengdu–Guiyang High-Speed Railway 231 kmYibin–Guiyang ~ Chengdu–Guiyang High-Speed Railway 231 kmLanzhou (Xining)–Guangzhou Corridor (兰（西）广通道) China High-Speed Vertical Line The Lanzhou (Xining)–Guangzhou corridor is a partially operational high-speed railway corridor connecting Lanzhou and Xining to Guangzhou. The passage's two branches that begin Lanzhou and Xining meet at Chengdu in Sichuan Province. From Chengdu, the corridor passes through Guiyang and Guilin before ending at Guangzhou. The rail corridor was first announced in the 11th Five Year Plan by the Chinese government, as the "Chengdu–Guangzhou high-speed railway". In 2016, it was expanded to Lanzhou and Xining, as part of China's "Eight Vertical and Eight Horizontal" network. China High-Speed Railway "Eight Vertical Lines and Eight Horizontal Lines"  Lanzhou (Xining)–Guangzhou Corridor (兰（西）广通道) China High-Speed Vertical Line
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