and the stop patterns. Types by 2004: Types during 2004 – 2009: As the Rule of The Edit and Management of Train Timetable, a rule issued by Ministry of Railway, the arrangement of following passenger train classes was put into practice from April 1, 2009. Types during 2009 – 2015: Types since 2015: CRH trains G ("Gaosu Dongche", 高速动车; High Speed EMU Train) G trains is a series for long-distance high-speed trains. These are generally the fastest services available and the top speed can be up to but travel around operationally. As such they generally serve only lines capable of such speeds. G1–G5998 is used for the trains that run in more than one railway bureau's territory, while G6001–G9998 is used for the trains that run in only one railway bureau's territory. G trains never run overnight and thus have no sleeper car. D ("Dongche", 动车; EMU Train) This series has become available after the sixth rise in speed of the railway on April 18, 2007. The top speed will be up to 250–200 km/h but are limited to 250 km/h operationally. These trains are powered using CRH series electric multiple units (EMUs) named "Harmony" (Chinese:和谐号, Hexiehao). D1–D3998 for the trains running through two or more railway bureaus, D4001–D9998 for the trains running within one railway bureau. "D" services can run on high-speed lines, upgraded conventional lines or even over conventional railways at conventional speeds for a portion of their journey to connect some cities off the high-speed network. D-series trains provide relatively fast frequent service between main cities in China. For example: Beijing–Shijiazhuang (2 hours travel time), Taiyuan(3 hours travel time), Handan (3–3.5 hours travel time), Zhengzhou(5 hours travel time). Xiamen–Shenzhen(3.5 hour travel time) Shanghai–Nanjing (2 hours travel time), Hangzhou(1.5 hours travel time), some continuing to destinations beyond such as Zhengzhou and Hankou. Besides, a few other nighttime D trains go to more remote destinations, such as the services between Shanghai and Beijing. C ("Chengji Dongche", 城际动车; Intercity EMU Train) This series has become available after August 1, 2008 with the opening of Beijing–Tianjin Intercity Rail. It represents the EMU trains within a metropolitan region, and mainly running within one railway bureau. The top speed is 350 km/h (e.g. Beijing-Tianjin) but most operate from 200 to 160 km/h. C1–C1998 for the trains running through two or more railway bureaus, C2001–C9998 for the trains running within one railway bureau. Some