Datong–Qinhuangdao Railway

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Daqin Railway (simplified Chinese: 大秦铁路; traditional Chinese: 大秦鐵路; pinyin: dàqín tiělù), also known as the Daqin Line (simplified Chinese: 大秦线; traditional Chinese: 大秦線; pinyin: dàqín xiàn), is a 653 km coal-transport railway in north China. Its name is derived from its two terminal cities, Datong, a coal mining center in Shanxi province, and Qinhuangdao, of Hebei province, on the Bohai Sea.

The railway also passes through the municipalities of Beijing and Tianjin. Unlike most other railways in China, which are run by the Ministry of Railways, the Daqin Railway is operated by Daqin Railway Company Limited, a publicly traded stock company.

The electrified double track line serves as a major conduit for moving coal produced in Shanxi, Shaanxi and Inner Mongolia to Qinhuangdao, China's largest coal-exporting seaport, from there coal is shipped to south China and other countries in Asia.

The line was constructed in two phases between December 1984 and December 1992, with specifications changed from single-track to double-track during construction.[1] Design capacity was 100 million tonnes a year, which it reached after ten years, but continuous upgrades (wider subgrade, 75 kg/m rails, wagons with higher capacity and top speed, longer trains and stronger locomotives, radio operation and centralised traffic control, automatic train inspection) quadrupled capacity.[2] It carries more coal than any other railway line in China and the world.[citation needed]

Freight trains operating on the Daqin Line can carry up to 20,000 metric tons, the largest carrying capacity in China.[3]

In 2006, powerful locomotive models HXD1 and HXD2, with 9.6 MW and 10 MW power output respectively, entered Daqin line to replace the older DJ1 models.

Year Coal Transportation Volume
(metric tons)
...
1995 20 million[1]
...
2000 60.52 million[1]
...
2002 100 million[2]
2003 120 million[4]
2004 153 million[5]
2005 203 million[5]
2006 250 million[6]
2007 300 million[7]
2008 340 million[2]
2009 330 million[8]
2010 401 million[9]
2011 440 million[10]

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