Line 2 of CRT runs southeastward from Jiaochangkou to Yudong.

It was subsequently expanded 1 June 2006 from Zoo to Xinshancun, and on 30 December 2014 to Yudong.

[3][4] Line 2, which currently runs 29.9 km (18.6 mi) and services 25 stations, begins as a subway under downtown Jiefangbei, then runs west along the southern bank of the Jialing River on an elevated line, and then turns south into the city's southwestern inner suburbs, looping back east to terminate at Yudong in Ba'nan.

The top speed is 80 kilometres per hour (50 mph) and maximum capacity is 1802 passengers.

The exterior features a streamlined design with a two-tone color scheme inspired by the scenery in Chongqing.