As a high-speed station, Beijing South Railway Station is equipped with a special unit that greets trains and guides passengers on and off the train. Staffer Ren Zhongxuan wai-ts for a train to come. (cctv.cn/ Liu Siting/ Zhang Di)

Train platform staff in the office and lounge. More than 20 percent of trains are put to use when the Spring Festival travel rush comes. (cctv.cn/ Liu Siting/ Zhang Di)

Train platform staff in the office and lounge. More than 20 percent of trains are put to use when the Spring Festival travel rush comes. (cctv.cn/ Liu Siting/ Zhang Di)

Ren Zhongxuan writes down information about the trains. (cctv.cn/ Liu Siting/ Zhang Di)

Train platform staff work in three shifts, which means everyone has to work for 24 consecutive hours. They need to walk in and out of the platform more than 100 times, taking about 85 steps each time. “We are the champions of pedometer ranking list,” Ren jokes. (cctv.cn/ Liu Siting/ Zhang Di)

Staffer Li guides passenger onto the train. Beijing South Railway Station expects to send off 4.08 million passengers during the Spring Festival travel rush, a total of 102,000 passengers a day. (cctv.cn/ Liu Siting/ Zhang Di)

As a high-speed station, Beijing South Railway Station is equipped with a special unit that greets trains and guides passengers on and off the train. (cctv.cn/ Liu Siting/ Zhang Di)

As a high-speed station, Beijing South Railway Station is equipped with a special unit that greets trains and guides passengers on and off the train. (cctv.cn/ Liu Siting/ Zhang Di)

As a high-speed station, Beijing South Railway Station is equipped with a special unit that greets trains and guides passengers on and off the train. (cctv.cn/ Liu Siting/ Zhang Di)

As a high-speed station, Beijing South Railway Station is equipped with a special unit that greets trains and guides passengers on and off the train. (cctv.cn/ Liu Siting/ Zhang Di)