After 8 months' unremitting efforts by all staff of the project office, 9 sets of joint turnout for the extension section of Chongqing rail transit Line 2 were completed on schedule and passed the initial acceptance on January 22, which laid the foundation for CRBBG to further open up its urban rail transit market.

Chongqing rail transit Line 2 is one of the ten key projects in the national west development as well as the first rail transit line constructed and operated in the west area of China. CRBBG contracted manufacturing and installation of 10 sets of turnout for the extension section of this project, including 3 sets of three-way switch, 3 sets of five-way switch and 4 sets of simple turnout. Compared with previous projects, it was an installation of turnout with the greatest quantity that fully showed CRBBG's research and development strength in the urban rail transit field.

Since the start of the construction in May 2014, the project office overcame the disadvantages such as rainy weather and difficulty of cross construction on site; made proper organization and arrangement; completed all installation and debugging work with the assurance of quality, quantity and safety; and were recognized by the Owner and the cooperating units.