According to the inquiry of official website, Tencent.com, China Railway Fifth Bureau undertook the construction task of Chongqing Section 10 Bid Section of Chongqing-Chongqing Railway. Chongqing section 10 of Chongqing-Guizhou Railway is located in Qianfeng District, Guang 'an City, Sichuan Province, with a total length of 32. 109 km, including subgrade of 9.965 km, 32 bridges 17490 m, 3 tunnels of 4,668 m and ballastless track of 64.22 km.
High-speed rail generally refers to high-speed railway. High-speed railway, referred to as high-speed railway for short, refers to a railway system with high design standards and high speed for the safe running of trains. Its concept is not limited to tracks, let alone trains.