Line 3 (Xi'an Metro)

Line 3 of the Xi'an Metro (Chinese: 西安地铁三号线; pinyin: Xī'ān dìtiě sānhàoxiàn) is a rapid transit line running from northeast to southwest Xi'an, linking Xi'an International Trade & Logistics Park in the northwest through Xi'an Economic & Technological Development Zone to Yuhuazhai in the southwest. Line 3 is one of the three lines that form the main framework of Xi'an metro.[1] Phase 1 of Line 3 was opened on November 8, 2016, with 19 underground stations and 7 overground stations. Phase 2 is still under planning. The line is colored pink on system maps.[2]

Line 3
3
Overview
Native name	西安地铁三号线
Status	Operational
Owner	Xi'an Metro Ltd
Locale	Xi'an, Shaanxi
Termini	Yuhuazhai[1] Baoshuiqu[1]
Stations	26[1]
Color on map	Pink[2]
Website	Xi'an Metro
Service
Type	Rapid Transit
System	Xi'an Metro
Services	1
Operator(s)	Xi'an Metro Ltd
Depot(s)	Yuhuazhai Depot and Guoji Gangwuqu Depot[1]
Rolling stock	CNR DKZ17
Daily ridership	825,700 (2019 Peak)[3]
History
Opened	8 November 2016
Technical
Line length	39.15 km (24.33 mi)
Number of tracks	2
Character	Underground and overground
Track gauge	1,435 mm (4 ft 8 ^1⁄2 in) standard gauge
Electrification	1500 V DC Overhead catenary[4]
Operating speed	80 km/h (maximum), 35 km/h (average)[5]
Route map Yuhuazhai Depot Yuhuazhai Zhangbei Lu Yanpingmen Keji Lu Taibai Nanlu Jixiangcun Xiaozhai  2  Dayanta  4  Beichitou Qinglongsi Yanxingmen Xianning Lu Changle Gongyuan Tonghuamen  1  Hujimiao Shijiajie Xinjiamiao Guangtaimen Taohuatan Chanba Zhongxin Xianghuwan Wuzhuang Guoji Gangwuqu Shuangzhai Xinzhu Baoshuiqu Baoshuiqu Depot

Opening timeline

Segment	Commencement	Length	Station(s)	Name
Yuhuazhai — Baoshuiqu	8 November 2016	39.1 km (24.30 mi)	26	Phase 1

Stations (from south to north)

Service routes		Station name		Connections	Distance km[6]		Location
		English	Chinese
●	●	Yuhuazhai	鱼化寨		0.000	0.000	Yanta
●	●	Zhangbabei Lu	丈八北路		2.311	2.311
●	●	Yanpingmen	延平门	8  (Planned)	1.244	3.555
●	●	Keji Lu	科技路	6  (U/C)	1.761	5.316
●	●	Taibai Nanlu	太白南路		1.262	6.579
●	●	Jixiangcun	吉祥村		1.618	8.197
●	●	Xiaozhai	小寨	2	1.350	9.547
●	●	Dayanta	大雁塔	4	1.493	11.040
●	●	Beichitou	北池头		1.277	12.317
●	●	Qinglongsi	青龙寺	5  (U/C)	1.783	14.100
●	●	Yanxingmen	延兴门		1.869	15.968	Beilin
●	●	Xianning Lu	咸宁路	6  (U/C)	0.799	16.767	Beilin/Xincheng
●	●	Changle Gongyuan	长乐公园		1.114	17.881	Xincheng
●	●	Tonghuamen	通化门	1	0.962	18.843
●	●	Hujiamiao	胡家庙		0.893	19.736
●	●	Shijiajie	石家街		1.477	21.214
●	●	Xinjiamiao	辛家庙		1.557	22.771	Weiyang
●	●	Guangtaimen	广泰门	8  (Planned)	2.008	24.779
●	●	Taohuatan	桃花潭		1.828	26.607	Baqiao
●	●	Chanba Zhongxin	浐灞中心		1.574	28.181
●	●	Xianghuwan	香湖湾		1.597	29.778
●		Wuzhuang	务庄		2.166	31.945
●		Guoji Gangwuqu	国际港务区		2.233	34.178
●		Shuangzhai	双寨		1.264	35.442
●		Xinzhu	新筑		1.193	36.635
●		Baoshuiqu	保税区		1.397	38.032

Future development

Phase 2

Phase 2 of Line 3 is still in long-term planning[1] (to be completed by 2040). It will be an extension from the southwest terminus of Phase 1, Yuhuazhai Station to (tentatively named) Kunmingchi Station. After the completion of Phase 2, Line 3 will have 30 stations (an addition of 4 to Phase 1) and a length of 50.5 km (31.4 mi) in total.[1]

Rolling stock

The rolling stock consists solely of CNR DKZ17 trains manufactured by CNR Dalian, 41 trainsets will be provided as per the first contract.[7] The trains run in six-car formation, with four motor cars and two trailer cars, which is different from previous trains (running in 3-3 formation), as more power is required to drive the trains up the ramp from underground to overground sections.[7]

DKZ17
Manufacturer	CNR
Built at	CNR Dalian, CNR Changchun and CSR Sifang[7]
Formation	Six-car formation Tc-Mp-M-T-Mp-Tc[nb 1]
Capacity	1468(rated) 1880(maximum)
Operator(s)	Xi'an Metro
Specifications
Train length	19000 mm
Width	2800 mm
Height	3800 mm
Electric system(s)	1500 V DC Overhead catenary

Train Control

Line 3, as all the previous lines, uses Trainguard MT CBTC signal system manufactured by Siemens[8][9] to enhance the safety of the automated, driverless trains.

Incidents

Defective cable incident

On 13 March 2017, a post titled Do you still dare to take the Xi'an Metro? (西安的地铁你们还敢坐吗) was posted by an anonymous whistle-blower on an online forum.[10] The poster claimed that the electrical cables used on Line 3 of Xi'an Metro, which were produced by Shaanxi Aokai Electrical Cables (Aokai Cables), did not meet the safety criteria, specifically, the cross-sectional area was smaller than specified, which might lead to overheating of the cables, therefore presenting a fire hazard.

On 15 March, Aokai Cables released a statement that the claims were unfounded and they have filed a police report.

On 16 March, the official Xi'an Metro Weibo account announced that they had launched an official investigation and an internal audit. On the same day, the government of Xi'an pledged to investigate the matter.

On 20 March, the government of Xi'an told a press conference that none out of five cable samples sampled were of acceptable quality.

In the wake of the incident, 8 members of staff from Aokai cables were arrested and disciplinary actions were taken against 122 local officials, including 8 bureau-directors and 58 division heads.[11]

Notes

1. Note that trains running on line 3 will be different with 4 motor cars and 2 trailer cars.

References

1. 西安地铁三号线一期工程 (in Chinese). 26 August 2013. Archived from the original on 12 October 2015.
2. "西安地铁三号线首批列车到西安 腰线粉色". 2015-08-31. Retrieved 2019-11-06.
3. 王瑜 (2019-03-10). "3月8日西安地铁客流再创历史新高 单日客流首次突破300万大关" (in Chinese). 西部网. Retrieved 2019-03-13.
4. 西安地铁三号线高架段供电系统工程正式开工. sn.people.com.cn (in Chinese). 17 March 2015. Retrieved 6 November 2015.
5. 港务区车辆段供电成功 三号线列车开始调试. 西安地铁. Retrieved 10 December 2017.
6. "西安地铁一、二、三号线站间距离信息". 2016-11-16. Retrieved 2019-11-06.
7. 西安地铁3号线首批列车到西安 腰线是粉色. 31 August 2015. Retrieved 6 November 2015.
8. "Trainguard MT" (PDF). mobility.siemens.com. Siemens. p. 11. Retrieved 6 November 2015.
9. "Communication Based Train Control System for Xi'an Metro Line 2". Baidu Documents. Retrieved 6 November 2015.
10. 西安地铁你们还敢坐吗(转载). Tianya BBS. Retrieved 15 December 2017.
11. 国务院严厉问责西安问题电缆 西安地铁三号线电缆门始末. 中金外汇. 8 June 2017. Retrieved 15 December 2017.