When I get off the subway line 4 at Beijing South Railway Station to do the Beijing-Tianjin Intercity Transit, how do I get there? Please don't tell me to follow the signs, I want to know exactly how to go... Beijing South Railway Station, under the subway line 4, directly out of the subway station, out of the subway station, the location of the underground 1 layer of the big channel, directly to the Beijing South Railway Station North Square, according to the direction of this walk, to find the North Square, take the elevator, directly to the 2nd floor, the 2nd floor by the Beijing-Tianjin intercity. To the 2nd floor, self-service ticket machines to buy tickets, window purchase can also be.