After years of talk, wrangling and anticipation, The Vine’s 60-foot articulated buses will begin rolling through Vancouver on Sunday.“Jan. 8 dovetails with a midyear service change, so we felt it would make sense to launch The Vine in conjunction with that,” C-Tran spokeswoman Christine Selk said in an email.In addition to The Vine, C-Tran is implementing several other changes on Sunday. Route 4 is ending. The Vancouver Mall Transit Center is moving from the north side to the south side of the mall. C-Tran will also launch Route 73, which will circle Vancouver Mall.Riders who need to travel across the Columbia River can use the shuttle, Route 60, which has been running from downtown since September.The $53 million project is the first bus rapid transit system in Southwest Washington and the Portland metro area. The buses will run from Vancouver Mall to downtown Vancouver mainly along the Fourth Plain corridor — C-Tran’s busiest service area.To help the public adapt to using The Vine, C-Tran staff will be out along the route for the first week of operation to help guide riders though the process and answer questions.C-Tran officials are keeping a close eye on the weather forecast and hoping conditions stay favorable. As of Wednesday, the National Weather Service predicts rain for Sunday, possibly mixed with freezing rain.