Zhengzhou–Xi'an high-speed railway

Xuzhou–Lanzhou high-speed railway Zhengzhou–Xi'an section
Overview
Native name	徐兰高速铁路郑西段
Status	Operational
Owner	CR Zhengzhou CR Xi'an
Locale	Henan province Shaanxi province
Termini	Zhengzhou Xi'an North
Service
Type	High-speed rail
Operator(s)	China Railway High-speed
History
Opened	February 6, 2010 (2010-02-06)
Technical
Line length	457 km (284 mi)
Number of tracks	2 (Double-track)
Track gauge	1,435 mm (4 ft 8+1⁄2 in) standard gauge
Minimum radius	7,000 m (4.3 mi)
Electrification	25 kV 50 Hz AC (Overhead line)
Operating speed	350 km/h (217 mph)
Route map Legend km Zhengxu HSR to Xuzhou East Zhengji HSR to Jinan West Jingshi HSR to Beijing West Zhengzhou East Longhai railway to Lianyungang East Zhengyu HSR to Chongqing North Shiwu HSR Shiwu HSR 0 Zhengzhou Jingshi HSR to Beijing Longhai railway 24 Zhengzhou West 75 Gongyi South Luoyang–Zhoukou railway to Zhoukou East Hohhot–Nanning HSR to Taiyuan South Jiaozuo–Liuzhou railway to Yueshan│to Liuzhou & Luoyang–Zhanjiang railway to Luoyang│to Zhanjiang 125 Luoyang Longmen Hohhot–Nanning HSR to Nanning East 190 Mianchi South Longhai railway to Lanzhou 248 Sanmenxia South Haoji Railway to Haolebaoji South│to Ji'an 296 Lingbao West 384 Huashan North Weinan Weihe Grand Bridge Wei River Daxi HSR to Datong South 442 Weinan North Lintong East Xi'an–Ankang railway to Ankang Xi'an 505 Xi'an North Yinxi HSR to Yinchuan Xicheng HSR to Jiangyou Longhai railway to Lanzhou Xibao HSR to Baoji South km This diagram: view talk edit

The Zhengzhou–Xi'an high-speed railway, also known as the Zhengxi passenger line, is a high-speed railway line operated by China Railway High-speed, connecting Zhengzhou and Xi'an, the provincial capitals of Henan and Shaanxi, respectively. It went into operation on February 6, 2010.

The line is one of the segments of the Xuzhou–Lanzhou high-speed railway, a high-speed mainline from Lanzhou to Xuzhou, paralleling the existing Longhai Railway line.

The densely populated corridor between Zhengzhou and Xi'an, both large regional centres, is home to some 100 million people. Its top speed is 350 km/h (220 mph) in operation and the minimum travel time between the two cities is 1 hour and 58 minutes, although in practice, the journey takes more than two hours with a few intermediate stops.^[1]

When the high-speed line first opened, the trains departed and arrived at the "old" main train stations of Zhengzhou and Xi'an. Once the new Xi'an North railway station was opened, all high-speed service in Xi'an was routed to it. In Zhengzhou, now both the Zhengzhou Railway Station and the new Zhengzhou East railway station are served by high-speed trains from Xi'an.

The faster, G-series trains on the Zhengzhou–Xi'an Railway are numbered G20xx. Westbound trains (Zhengzhou to Xi'an) are odd-numbered, while even numbers denote eastbound trains (Xi'an to Zhengzhou).

With the opening of the Zhengzhou–Wuhan section of the Beijing–Guangzhou high-speed railway in the fall of 2012, direct high-speed service from Xi'an to Wuhan, Changsha, Guangzhou, and Shenzhen was introduced.^[2] As well, after the Beijing-Shijiazhuang-Zhengzhou section of the Beijing–Guangzhou line became operational at the end of 2012, direct Xi'an-Beijing service became available.

The railway has made air service between Zhengzhou and Xi'an uncompetitive. All passenger flights between the two cities were suspended within 48 days of the start of regular high-speed rail service.^[3]

Construction work began on September 25, 2005, and the railway opened for service on February 6, 2010.^[4][5] CRH trains will run at 350 km/h (220 mph) on the line.

The main line is 456.639 km (283.742 mi) long, with another 27.879 km (17.323 mi) extension connecting the existing Longhai Railway from Xi'an North to Xianyang Qindu. Ten railway stations were built along the line: Zhouzhou West, Gongyi South, Luoyang Longmen, Mianchi South, Sanmenxia South, Lingbao West, Huashan North, Weinan North, Lintong East, and Xi'an North. The minimum railway curve radius is 9,000 metres (30,000 ft) for most of the line and 7,000 metres (23,000 ft) for some difficult sections. The distance between two parallel tracks is 5 metres (16 ft 5 in).^{[citation needed]}

The line includes the 8,460-metre (27,760 ft) long Zhangmao Tunnel, 7,851-metre (25,758 ft) long Hanguguan Tunnel, and the 7,685-metre (25,213 ft) long Qindong Tunnel. The line also includes the 79,732-metre (261,588 ft) long Weihe Grand Bridge, which, upon its completion, was the longest bridge in the world.^[6]

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On November 14, 2009, a track inspection train seriously damaged 2,000 metres (6,600 ft) of the tracks near Huashan North Railway Station during a test run. The damaged section had to be removed and replaced. The railway was originally expected to be opened in December 2009, but the accident delayed the opening of the railway for at least one month.

• Project Information Document: 37487: Xi'an-Zhengzhou Railway Development (Asian Development Bank)

• Route on OpenStreetMap