Editor's note: 2015 marks Tibet’s 50th anniversary of peaceful liberation. Located on the world’s highest plateau, Tibet used to be known for its underdeveloped transportation system. Over the last half century, the Chinese government has been dedicated to modernizing the connections on the roads, on the rails, and in the air. Here are eight public transportation icons in Tibet.

Liuwu Bridge, Tibet's very first modern overpass. [Photo Taken on Aug. 25, 2014/ Xinhua]

The first Shigatse-bound train enters the final station on the Lhasa–Shigatse Railway (Photo Taken on Aug. 16, 2014).

The Lhasa-Nyingchi Highway is under construction (Photo Taken on Aug. 8, 2015).

Scene of the Sichuan-Tibet Highway in Chamdo (Photo Taken on Aug. 4, 2015).

The 72 Curves of Nujiang River on the Sichuan-Tibet Highway (Photo Taken on Aug. 4, 2015).

　　A train runs on Qinghai-Tibet Railway (Photo Taken on March 18, 2013).

　　A major street in Lhasa (Photo Taken on May 9, 2014).

　　Tangmai Bridge is under construction (Photo Taken on Aug. 5, 2015)

A Merged photo comparing the new Tangmai Bridge and the two small bridges before (Photo Taken on Aug. 5, 2015).