Tongnan Yao, my hometown, usually takes the light rail to Tongnan, and don't get on the bus casually in the urban area, unlike in my hometown, you can take a long distance on the road. If you go back often, there is a private van in your hometown to take people to Chongqing, and you can pick them up at home. It's usually cheaper for several people to go together. You can ask several students to go back by van together.

I don't know much about university town. If there is a bus to Bishan, I can also go to Bishan.