1月10日，呼和浩特至北京西的T315次旅客列车行驶在高架桥上。当日，呼和浩特铁路局增开呼和浩特至北京西的T315/6次旅客列车，速度为140公里每小时，区间运行6小时51分，是迄今为止呼和浩特至北京开行的最快旅客列车，实现呼和浩特到首都的“朝发夕归”。新华社发（纪恩泉 摄） January 10,,Hohhot to Beijing T315 time of passenger train running in the viaduct.the,Hohhot railway administration to open to the northwest of Hohhot the T315/6 times passenger train,Speed of 140 kilometers per hour,Interval operation 6 hours 51 points,Is by far Hohhot to Beijing operation the fastest passenger train,Realize Hohhot to the capital"Toward hair day to".The xinhua news agency hair(JiEnQuan perturbation)