Qinghai-Tibet Railway is the highest railway in the world. 960 km of its tracks are located 4,000 m above sea level and the highest point is 5,072 m. This is at least 200 m higher than the Peruvian railway in the Andes which was formerly the world’s most elevated rail. The highest point is located close to the Tanggula Station. This is a non-staffed station opened for service on the 1th of July in 2006.
The railway is the world’s longest plateau rail road extending 1,956 km from Qinghai’s provincial capital Xining to Lhasa in Tibet. Qinghai-Tibet Railway is the first rail road linking Tibet with the rest of China.
About 550 km of the tracks run on frozen ground and due to that the construction has been extremely difficult and lengthy. Thus, is most be considered as one of the most extensive infrastructure projects in the world. The increase after Golmud Pass offers a dramatic landscape. Because of the low pressure, the oxygen level tends to be about 35-40 per cent less relatively to the level at sea level. Consequently, extra oxygen for passengers is added in the carriages.