YANTAI, Jan. 9, 2016 (Xinhua) -- Passengers are seen in Yantai South Station in Yantai, east China's Shandong Province, Jan. 9, 2016. Starting from Jan. 9, 2016 at 0 o'clock, the new railway operation diagram will take effect. The number of high-speed trains will be 1980.5 pairs, which accounts for more than 60 percent of all trains. (Xinhua/Sun Wentan)

NANJING, Jan. 9, 2016 (Xinhua) -- Train attendants prepare to board at Nanjing Station, east China's Jiangsu Province, Nov. 10, 2015. Starting from Jan. 9, 2016 at 0 o'clock, the new railway operation diagram will take effect. The number of high-speed trains will be 1980.5 pairs, which accounts for more than 60 percent of all trains. (Xinhua/Su Yang)

YANTAI, Jan. 9, 2016 (Xinhua) -- Working staff in Yantai Station change a train information sheet in Yantai, east China's Shandong Province, Jan. 9, 2016. Starting from Jan. 9, 2016 at 0 o'clock, the new railway operation diagram will take effect. The number of high-speed trains will be 1980.5 pairs, which accounts for more than 60 percent of all trains. (Xinhua/Tang ke)

YANTAI, Jan. 9, 2016 (Xinhua) -- Photo taken on Jan. 9, 2016 shows a high-speed train arriving in Yantai Station in Yantai, east China's Shandong Province. Starting from Jan. 9, 2016 at 0 o'clock, the new railway operation diagram will take effect. The number of high-speed trains will be 1980.5 pairs, which accounts for more than 60 percent of all trains. (Xinhua/Tang ke)

WUXI, Jan. 9, 2016 (Xinhua) -- Photo taken on Jan. 9, 2016 shows a high-speed train in Wuxi, east China's Jiangsu Province. Starting from Jan. 9, 2016 at 0 o'clock, the new railway operation diagram will take effect. The number of high-speed trains will be 1980.5 pairs, which accounts for more than 60 percent of all trains. (Xinhua/Huan Yueliang)