There are two main coach stations in this city.
One is Tai’an Coach Bus Station (Old), located at the joint of the Taishan Street, Longtan Road and Lingshan Street, Taishan District. With a big volume of passenger traffic, it provides more coaches. So, it would be a better choice for you.
The other is the New Coach Bus Station, situated in the west section of the Dongyue Street, and the Bus No.1, 4, 5, 11, 16, 31, 32 can take you go there.