Are you sure you got off at Chongqing Railway Station, not Chongqing North Station?
1 Chongqing North Railway Station
To the ABC campus, take the light rail line 3 at Lianglukou Station and transfer to the subway. 1 line is in Shapingba, and the Agricultural Bank of China campus is around the Three Gorges Square.
To Huxi campus, take bus No.288 and get off at the main bus stop.
2 Chongqing Railway Station
To ABC campus, there are many buses to Shapingba in the square.
To Huxi Campus, take the long-distance Caiyuanba to Bishan, get off at the gate of Chongqing Institute of Science and Technology, and then transfer to No.272 to get off at major bus stops.
Freshmen should report according to the registration time, and there will be a school bus to pick them up. There is no need to think too much about traffic problems.