Qinghai-Tibet Railway

Qinghai-Tibet Railway starts from the Xinin, Qinghai province to Lhasa city, Tibet, covering the slopes on both sides with 1956 kilometres in total. It is the longest plateau railway built on the highest altitude in the world.

The railway traverses 965 kilometres of land above 4000 meter in altitude. The highest point for the railway in Mount Tangula is 5,072 meters.

The first section of Qinghai-Tibet Railway has already been completed, linking Xinin with Golmud. The second section of the project from Golmud to Lhasa was launched in February 2001 with the approval of the State Council. At present, the project has laid down 317 kilometres of new rail, accounting for 28.6% of total mileage of rail.

The biggest difficulty for the railway project is to going through long-frozen earth on plateau. Areas along the railway are plateau grassland. Some sections even go through the no-man's land on the plateau. In order to protect the long-frozen earth and grass on the plateau, the railway project is divided into various sections and transplants the grass to minimize the loss of grassland. In southern Kunlun Mount, grass that easily grows on the plateau is planted there. Using seed-spraying and double membrane protection, the grassland can be quickly recovered and become a green corridor along the railway.

On 550 kilometres of railway that goes through years of cold land, a heat preservation layer is inserted on the rail base; bridges are built; the ventilated rail base is laid to best protect the cold land.

In order to protect the animals and plants in Kekexili, Sanjiangyuan, Qingtang natural conservations, railway bridges and culverts and animal passages are built. When the train is travelling, the whole carriage will be enclosed. The rubbish on train will be gathered and dumped at designated garbage sites. Waste disposal will be strictly monitored.

Meanwhile, the major train station along the railway will use gasoline, solar or wind power to provide clean energy for heating. The sewage disposal must comply with strict standards.