1, there are four doors, yes, only the east, south and west doors are opened on weekdays, and the north gate seems to be a wedding venue.

2, I don't know, it's very big inside, and it's messy to walk.

3. South Gate is the gate with the most buses, including 675, 672, 4 19, 673, 750, 758, etc. However, the bus stop is called "North Exit of Sweet Water Garden Street". Simon has 4 19.628. . . There seems to be 99 1 at the east gate of the East Fourth Ring Road, and there are fewer cars.