If Dazu goes to the university town, Dazu and Longshui will pass through Yongchuan, and there is an overpass at Jiangjin Zouma, a highway around Chongqing (there is only one direction in the university town now, so you can't go wrong). .
Note: Now there is expressway from Bishan to Jiangjin, and the University Town is next to expressway near Bishan.
I wonder if the above answer is ok? Now the main consideration is high speed, and the old road is too troublesome! ! !