The Lanzhou–Ürümqi High-Speed Railway also known as Lanzhou–Xinjiang Passenger Railway or Lanxin Second Railway (兰新铁路第二双线) is a high-speed rail under construction in northwestern China. It will connect Lanzhou in Gansu Province and Ürümqi in Xinjiang Uyghur Autonomous Region.Construction work began on November 4 2009.