After the peaceful liberation of Tibet,the first large-scale construction project was to build highways from Sichuan and Qinghai to Lhasa on the high mountain ridges with an average elevation of 3,000 meters.

• 西藏和平解放后的第一项大规模建设，就是在平均海拔为3000米的崇山峻岭中修建四川和青海通往拉萨的公路。