Datong–Xi'an high-speed railway

Datong–Xi'an high-speed railway
大西客运专线
Datong-Xi'an HSR
Overview
Other name(s)Daxi Passenger Dedicated Line
StatusIn operation (partly)
LocaleShanxi & Shaanxi, China
Termini
Service
TypeHigh-speed rail
SystemChina Railway
Operator(s)CR Taiyuan Group & CR Xi'an Group
Technical
Line length859 km (534 mi)
Track gauge1,435 mm (4 ft 8+12 in) standard gauge
Electrification25 kV AC
Operating speed
  • 200 km/h (120 mph) (Datong–Yuanping)
  • 250 km/h (160 mph) (Yuanping–Xi'an)
SignallingAutomatic block
Route map

km
Datong South
Huairen East
Yingxian West
Sanyin South
Shuozhou East
Daixian West
Fanjiazhuang crossing loop
end of Jining–Datong–Yuanping HSR
Yuanping West
Xinzhou West
Yangqu West
high-speed line Up arrow
main line Down arrow
Xijianhe crossing loop Left arrow
Taiyuan East
Taiyuan
Up arrow main line
Down arrow high-speed line
Taiyuan South
Xinmingli
Jinzhong
Taigu West
Qixian East
Pingyaogucheng
Jiexiu East
Lingshi East
Huozhou East
Hongdong West
Linfen West
Xiangfen West
Houma West
Wenxi West
Yuncheng North
Yongji North
Jinshan Yellow River Bridge
Dali
Weinan North
Wanli crossing loop
Lintong East
Xi'an North

Datong–Xi'an high-speed railway or Daxi HSR (simplified Chinese: 大西客运专线; traditional Chinese: 大西客運專線; pinyin: Dà–Xī kèyùn zhuānxiàn) is a dual-track, electrified, high-speed rail line operated by CR Taiyuan Group and CR Xi'an Group between Datong, Shanxi and Xi'an, Shaanxi. It has a length of 859 km (534 mi) through the provinces of Shanxi and Shaanxi Province, traversing the north-south axis of the former, and will accommodate trains traveling at speeds up to 250 km/h (160 mph).[1] Travel time between the two terminal cities will be reduced from 16.5 hours to about three hours.[2]

Route

The high speed rail line will run down the length of Shanxi Province from Datong in the north through Shuozhou, Xinzhou, the provincial capital Taiyuan, Jinzhong, Linfen and Yuncheng. It crosses the Yellow River at Yongji, enter Shaanxi and reach Xian via Weinan and Lintong.[1] As of 2022, most of the high-speed line is finished, but the section between Huairen East and Yuanping West runs on the 153-kilometre (95 mi)-long Hanjialing–Yuanping railway, a line built mainly for freight with a design speed of 160 kilometres per hour (99 mph) that was opened on 29 March 2014 to bypass a section of the Datong–Puzhou railway. In future passenger traffic will run on a section of the new Jining–Datong–Yuanping high-speed railway that has been officially under construction next to the line from Datong South to Yuanping West since June 2020.[3] Another short section of main line runs through Taiyuan East and Taiyuan.

The whole line now forms part of the Beijing–Kunming corridor of the 8+8 HSR Grid, now under development. The section between Xi'an and Xinzhou (where the proposed Xiong'an–Xinzhou high-speed railwayXiongxin HSR—would branch off to Xiong'an) forms part of its main line, while the section between Xinzhou and Datong forms part of the Beijing–Zhangjiakou–Datong–Taiyuan branch.

Together with the Shijiazhuang–Taiyuan high-speed railway, the Taiyuan-Xi'an section of the Datong–Xi'an passenger railway provides a potential more direct route for high-speed passenger trains between Beijing and Xi'an (and points west) than the usual route via Zhengzhou (1,092 km (679 mi) via Taiyuan vs. 1,212 km (753 mi)). However, as of early 2015, this route appears to be slower than the one via Zhengzhou, and does not seem to be used by any direct Beijing-Xi'an trains. Instead, some services run from Beijing via Taiyuan to the southwestern Shanxi (mostly Yuncheng), while others run between Taiyuan and Xi'an.

History

Construction began on 3 December 2009[4] and was expected to cost ¥96.3 billion.[2] The line was scheduled to be completed by 2013[2] or 2014.[1] The Taiyuan-Xi'an section of the railway was opened on July 1, 2014; the Taiyuan-Yuanping section was opened on September 28, 2018;[5][6] and the Datong-Yuanping section is currently not newly constructed but using quadruple tracks of North Tongpu Line between Yuanping West and Huairen East. Such service commenced on May 1, 2019.[7]

Notes

  1. ^ a b c "大同至西安铁路客运专线开建 运行时间仅约3小时". 中国新闻网 (in Chinese (China)). 29 October 2010. Archived from the original on 3 July 2022. Retrieved 7 November 2010.
  2. ^ a b c "大西高铁陕西段全面开工(图)". 华商报 (in Chinese (China)). 30 October 2010. Archived from the original on 3 July 2022. Retrieved 8 May 2020 – via Sina News.
  3. ^ "集宁经大同至原平高速铁路开工建设" [Construction of the Jining-Yuanping high-speed railway started via Datong]. 山西省政府网 (in Chinese). 30 June 2020. Retrieved 2 January 2023.
  4. ^ "西安五年后4小时抵京5小时到沪高铁将直达乌市". 华商报 (in Chinese (China)). 29 January 2010. Archived from the original on 2 January 2020. Retrieved 7 November 2010 – via Sohu news.
  5. ^ "大西高铁原平西至太原南段开通 山西忻州驶入中国高铁网-中国新闻网". China News. 28 September 2018. Retrieved 3 July 2022.
  6. ^ "大西高铁原平西至太原南段开通运营-新华网". Xinhua News. 28 September 2018. Retrieved 3 July 2022.
  7. ^ 大西高铁怀仁东至太原南段五一开通. 生活晨报 (in Chinese). 30 April 2019. Archived from the original on 1 May 2019. Retrieved 1 May 2019.

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