What highways are there in Qinghai-Tibet?

There are Sichuan-Tibet, Qinghai-Tibet, New Tibet and Yunnan-Tibet.

Sichuan-Tibet Highway is a main highway in western China. It starts from Chengdu, the capital of Sichuan Province in the east and reaches Lhasa, the capital of Xizang Autonomous Region in the west. It consists of 3 18, 3 17, 2 14 and 109 sections of China National Highway. This is the steepest highway in China. Divide the north and south lines. There are some connecting lines in the middle of the north-south line, which are generally classified as part of the Sichuan-Tibet highway.

Qinghai-Tibet Highway is the asphalt highway with the highest altitude and the longest route in the world, and it is also the shortest mileage, the best road condition and the safest highway leading to Tibet at present. The Qinghai-Tibet Highway starts in Xining, Qinghai Province and ends in Lhasa, Xizang Autonomous Region. The Qinghai-Tibet Highway, with a total length of 1937 km, is a national secondary highway trunk line. The subgrade width is10m, the gradient is less than 7%, the minimum radius is1.25m, the maximum driving speed is 60km/h, and the average elevation of the whole line is over 4,000m. * * Culvert completed. The highway started on 1950 and was opened to traffic on 1954.

Xinzang Highway is one of the Xinzang lines (Xinzang West Line), numbered G2 19, that is, National Highway 2 19. It starts from the Zero Kilometer Stone Monument in Yecheng County, Kashgar, Xinjiang, intersects with National Highway 3 15, and ends near the 2 140 Kilometer Stone Monument in Chawu Township, Lazi County, Shigatse City, Tibet, and intersects with 365438. Also known as the Yala Highway. Not from Urumqi to Lhasa, but you can go to Lhasa, which is one of the routes to Tibet.

Yunnan-Tibet Highway: Kunming to Lhasa, Yunnan Province, Xizang Autonomous Region.