1. The driving directions are different: the inner ring is clockwise and the outer ring is counterclockwise.

2. Different stations: The starting station in the inner ring direction is Chongqing Library, and the stations are Shapingba, Ranjiaba, South Square of Chongqing North Station, Shangxin Street, Sikong, Xiejiawan, Chongqing West Railway Station and Chongqing Library. The starting station in the outer ring direction is Erlang, and the passing stations are Erlang, Xiejiawan, Shikong, Shangxin Street, South Square of Chongqing North Railway Station, Ranjiaba, Shapingba, Chongqing West Railway Station and Erlang.

3. The last bus is different: there are all last buses and half last buses on the loop. The running path of the inner ring and the outer ring is the same, but the departure station of the last bus is different. The starting station of the inner half-last bus is Chongqing Library, and the starting station of the outer half-last bus is Erlang.