Chongqing Rail Transit Explained

Chongqing Rail Transit
Locale:Chongqing, China
Area Served:Chongqing Urban Area
Transit Type: rapid transit
straddle-beam monorail metro
System Length:523.68km (325.4miles)
427.13km (265.41miles)
96.55km (59.99miles)
Began Operation: (trial)
(officially)
Lines:11
Vehicles:274[1]
Headway:2.5 min to 12 min
Stations:304
Ridership:3.005 million (2021 avg)
4.169 million (peak on 30 April 2021)[2]
Annual Ridership:1.097 billion (2021)[3]
Owner:Chongqing City Transportation Development & Investment (Group) Co., Ltd.
Operator:Chongqing Rail Transit (Group) Co., Ltd.
Website:http://www.cqmetro.cn
Native Name:Chinese: 重庆轨道交通
Chief Executive:Le Mei
Headquarters:123 Renmin Rd., Yuzhong District, Chongqing
Top Speed: 100kph
75kph
Average Speed: 50kph
40kph
El: /25 kV AC
Chongqing Rail Transit
S:重庆轨道交通
T:重慶軌道交通
P:Chóngqìng Guǐdào Jiāotōng
Sic:Congqin Guidao Jiaotong
Order:st

The Chongqing Rail Transit (branded as CRT; also known as Chongqing Metro) is the rapid transit system in the city of Chongqing, China. In operation since 2005, it serves the transportation needs of the city's main business and entertainment downtown areas and inner suburbs., CRT consisted of eleven lines, with a total track length of 523.680NaN0.[4] Lines 1, 4, 5, 6, 9, 10, 18, the Loop line and Jiangtiao line are conventional heavy-rail metro lines, while Lines 2 and 3 are high-capacity monorails. To keep up with urban growth, construction is under way on Line 18 and several other lines, in addition to extensions to Lines 5, 6 and 10.

The Chongqing Rail Transit is a unique transit system in China because of the geography of Chongqing being a densely-populated but mountainous city, with multiple river valleys. Two lines use heavy-monorail technology, leveraging the ability to negotiate steep grades and tight curves and rapid transit capacity. They are capable of transporting 32,000 passengers per hour per direction.[5] However the busiest section of Line 3 reaches a peak passenger volume of 37,700 pphpd in 2019.[6] At 98km (61miles),[7] the system's two monorail lines form the longest monorail system in the world,[8] with the 56.1km (34.9miles) Line 3 being the world's longest single monorail line even if the 11km (07miles) Konggang branch is excluded.[9] [10] The length and the capacity of its monorail network both also make it the world's busiest monorail system, with a total of 94 million and 250 million rides in 2015 on Line 2 and Line 3, respectively.[11] The latter ridership statistic for Line 3 also makes it the world's busiest single monorail line.

The extreme difference in elevation between the river valleys and the hilly plateaus of Chongqing pose a unique challenge in designing alignments for conventional rail transit lines. The network currently has the world's highest metro-only bridge, the Caijia Rail Transit Bridge for Line 6, spanning the Jialing River valley, with the bridge deck being approximately above the water.[12] Hongyancun station is the deepest metro station in China and the deepest metro station in the world with the station reaching 116m (381feet) below the surface,[13] [14] surpassing the Kyiv Metro's Arsenalna station. Hongtudi station and Liyuchi station, both on Line 10, are the second and third deepest stations in China, being 94m (308feet)[15] and 76m (249feet)[16] below the surface respectively. Additionally, Hualongqiao station is a six story structure that has Line 9 trains stopping 48 meters above the surface,[17] [18] making it the tallest metro station in the world, surpassing Smith–Ninth Streets station in New York.

The Chongqing Rail Transit system possesses a number of extremely-long metro-only bridges. The 16500NaN0 long Egongyan Rail Transit Bridge carries the southern arc of the Loop line across the Yangtze River using a 6000NaN0 long suspension main span, making it the longest metro-only suspension bridge by main span in the world.[19] The Nanjimen Bridge carries Line 10 trains across a 1225m (4,019feet) cable-stayed bridge with a main span of 4800NaN0, making it the longest metro-only cable-stayed bridge by main span in the world.[20] The Gaojia Huayuan Jialing River Rail Transit Bridge carries the western arc of the Loop line over the Jialing River using a long 594m (1,949feet) bridge with a main span of 3400NaN0.[21] Additionally, Chongqing Rail Transit system has numerous double-deck bridges carrying vehicle and metro traffic, such as the Chaotianmen Bridge, which is the world's longest arch bridge.

Network

LineTerminus
CommencementNewest extensionRolling stockLength
(km)
Stations
Loop line201820216A5133
201120206B43.725
200520144/6/8HL31.425
201120166/8HL56.145
6HL11.0
201820226A50.724
201720236A48.66[22] [23] 31
201220206B59.840
25.8
202220236A40.129
201720236A43.326
20236A28.9619
20226A28.27
Total523.68304

Loop line

See main article: Loop line (Chongqing Rail Transit). The Loop line (coded as "Line 0") is a rapid transit loop line.[24] The northeastern section was opened on 28 December 2018. The southern section with the Egongyan Rail Transit Bridge opened on 30 December 2019.[25] Three major railway stations in Chongqing are also linked by this line: Chongqing North railway station, Shapingba railway station, and Chongqing West railway station. Loop Line's color is

yellow.

Line 1

See main article: Line 1 (Chongqing Rail Transit). Line 1 runs 16.4km (10.2miles) from Chaotianmen, in the central west, to Shapingba and then to Bishan with a total length of 44.5km (27.7miles). It is the first heavy-rail subway line in Chongqing and the second in Western China. The passenger capacity is 36,000 passengers per hour in each way. The line serves as the system's backbone connecting the densest areas including the main Central Business Districts of Jiefangbei, Lianglukou, Daping, and Shapingba. It is the first conventional subway, running in a deep-bored tunnel below Yuzhong and Shapingba Districts.

Line 1 has transfer interchange stations with Line 6 at Xiaoshizi and Line 2 at Jiaochangkou in Jiefangbei CBD and at Daping and Line 3 at Lianglukou, which is near Chongqing railway station in central Yuzhong. Line 1 is also transferable with the Loop Line at Shapingba, although out-of-station transfer is currently needed due to construction setbacks on the interchange channel and concourse connecting the two subway lines.

In 1992, the Chongqing government signed a Build-Operate-Transfer agreement with a Hong Kong company and provided the land for the project, but work ceased in 1997 because of legal issues. Work resumed from Chaotianmen to Shapingba on 9 June 2009, and a limited opening occurred on 28 July 2011.[26] Thales provided an operations control centre for the line. Line 1's color is

red.

Line 2

See main article: Line 2 (Chongqing Rail Transit). Line 2, a monorail line, runs 31.4km (19.5miles) and has 25 stations. It begins as a subway under downtown Jiefangbei, then runs west along the southern bank of Jialing River on an elevated line, and then turns south into the southwestern inner suburbs, looping back east, to terminate at Yudong, in Ba'nan District. It runs mostly elevated, but a 2.2km (01.4miles) section is underground, including three of its 18 stations in the Jiefangbei CBD and central Daping areas in the extremely-dense area of Yuzhong District. Line 2 runs through four administrative districts in the central city (Yuzhong, Jiulongpo, Dadukou, and Ba'nan). In 2010, Line 2 served 45 million passengers.[27] It also runs through Daping CBD, Yangjiaping CBD in Jiulongpo District, and Chongqing Zoo at. Most trains have four cars, and six-car trains began to operate in September 2012.[28] Line 2 is the first rapid transit line to open in the Interior West of China, in 2005. In 2013, six-car trains are being implemented because of overcrowding and increasing demand.[29] Line 2's color is

green.

Line 3

See main article: Line 3 (Chongqing Rail Transit). Line 3 is the longest and busiest monorail in the world. It runs from north to south and links the districts separated by the Yangtze (Chang Jiang) and the Jialing Rivers. The initial segment, from Lianglukou to Yuanyang (18 stations, 17.5km (10.9miles)), opened on 29 September 2011, with a northern extension, from Yuanyang to Jiangbei Airport, opening on 30 December 2011.[30] A southern extension, from Ertang to Yudong, opened on 28 December 2012.[31]

Most trains have six cars, more than on the older Line 2. The line started to equip eight-car trains in 2014, which are now in operation.[32] There are interchange stations in the Yuzhong district with Line 1, at Lianglukou (Caiyuanba Intercity Railway/Coach Station), and with Line 2, at . Line 3's color is

indigo.

Line 4

See main article: Line 4 (Chongqing Rail Transit). Line 4 is a rapid transit line.[33] In June 2018, debugging of the first segment of Phase I commenced.[34] The line began operating on 28 December that year. Line 4's color is

orange.

Line 5

See main article: Line 5 (Chongqing Rail Transit). Line 5 is a northeast–southwest heavy-rail line crossing the centre, and the line has opened its northern and southern sections of phase 1 and northern extension. It will connect Yubei, Jiangbei, Yuzhong, Jiulongpo, Shapingba and Dadukou districts. New six-car trains were introduced on the line. Line 5's color is

light blue.

Line 6

See main article: Line 6 (Chongqing Rail Transit). Line 6 is the second heavy-rail subway line of Chongqing. Opened on 28 September 2012, it connects Nan'an, Yuzhong, Jiangbei and Yubei districts in central Chongqing.

A northern branch, from Lijia to Wulukou, Beibei District, was opened on 31 December 2013,[35] 26.2km (16.3miles) long with five stations. Phase 1 of the Chayuan extension was opened in 2014. Thales provided an operations control centre for the line. Line 6's color is

pink.

Line 9

See main article: Line 9 (Chongqing Rail Transit). The first phase of Line 9 opened on 25 January 2022. Line 9's colour is

crimson.

Line 10

See main article: Line 10 (Chongqing Rail Transit). The line serves the North Railway station and the airport terminals. The first phase (Liyuchi to Wangjiazhuang) opened on 28 December 2017, and the second phase will connect Yuzhong and Nan'an districts by crossing the Jialing and the Yangtze rivers. Two new bridges, Zengjiayan Jialing River Bridge and Nanjimen Rail Transit Bridge, are under construction for train services to the south. Line 10's color is

purple.

Jiangtiao line

See main article: Jiangtiao line. Jiangtiao line is a suburban rapid transit line connecting Jiangjin District with the metropolitan area. There will be through service between Line 5 and Jiangtiao line in the future. Jiangtiao line's color is

blue.

Ticketing

Transport cards

CRT accepts Life & Transport Card (Chongqing Universal Card, released by Chongqing City Card Payment Co., Ltd.) and its compatible cards, released by partner companies in other cities of China. There is a 10% discount applied to the Regular Card if it is used on public transit in the city. The higher price is paid for transfers between the bus and the metro within 1 hour (not including metro-to-metro, according to the paying time). The Regular Card can be purchased at any CRT station, and a deposit can be recovered when the card is returned with its receipt. In addition the card can be used in many shops, cinemas, restaurants, etc. in Chongqing. The Students' Card and the Elders' Card can not be directly used on the metro since their monthly fee covers only buses unless a cash sub-account, which allows a 50% discount, is added to the cards for free at the service points.

Time limit

All trips must be completed in 3 hours upon entering the fare-paid area, or the highest ticket price in the system will be charged in addition.[36]

Operation

During times of heavy use like for major events, CRT may close some stations to avoid overcrowding. In 2018, CRT closed Xiaoshizi, Jiaochangkou, Qixinggang, Lianglukou, Xiaolongkan, and Shapingba stations of Line 1; Jiaochangkou and Linjiangmen stations of Line 2; Lianglukou, Huaxinjie, Guanyinqiao, and Hongqihegou stations of Line 3; Shangxinjie, Xiaoshizi, Grand Theater, Jiangbeicheng, and Hongqihegou stations of Line 6 after 20:00 on Christmas Eve, Christmas Day, after 19:00 on New Year's Eve. And they also closed Shapingba and Shangxinjie stations of Loop line after 19:00 on New Year's Eve.

From 9 to 12 November 2018, they closed Grand Theater and Jiangbeicheng stations from 10:00 to 15:00 because of heavy use during Flower Expo; from 1 to 7 November 2019, they closed Grand Theater and Jiangbeicheng stations since 10:00 till 16:00 because of heavy use during Flower Expo.

Accessibility

Almost every station has accessible elevators and toilets, and almost every train has wheelchair locks. Only the oldest rolling stock and toilets of Line 2 are not fully accessible. In addition, many older interchange channels between lines are not designed with accessibility in mind, which means the disabled there must transfer via the main concourse.[37]

Luggage rack

The trains on Line 10, which links Jiangbei Airport and Chongqing North railway station, are equipped with a luggage rack on each car.[38]

History

The CRT is part of the central government's project to develop the Western regions. The Japan Bank for International Cooperation provided some of the funding.[39] Construction was carried out, with co-operation between Changchun Railway Vehicles Co. Ltd. and Hitachi Monorail, which used advanced Japanese monorail technology.[40] Construction on Line 2 began in 1999, and the line was officially opened in June 2005 from Jiaochangkou (Jiefangbei CBD) to Zoo (Chongqing Zoo).

Early concepts and attempts

Official long-term plans

Commencement and expansions

LineSegmentStart of constructionBegan operation
Phase I (2000‒2014)
ChaotianmenXiaoshizi
XiaoshiziJiaochangkou
JiaochangkouShapingba
ShapingbaDaxuecheng
DaxuechengJiandingpo
JiaochangkouDaping
DapingZoo
ZooXinshancun
XinshancunYudong
YudongChongqing Jiaotong University
Chongqing Jiaotong UniversityLianglukou
LianglukouLongtousi
LongtousiYuanyang
YuanyangChangfulu
ChangfuluTerminal 2 of Jiangbei Airport
BijinJurenba
ChayuanWulidian
WulidianKangzhuang
KangzhuangLijia
LijiaBeibei
Phase II (2012‒2020)
Chongqing LibraryHaixialu
HaixialuErlang
ErlangChongqing Library
Min'an AveChongqing North Station North Square
Chongqing North Station North SquareTangjiatuo
The EXPO Garden CenterDalongshan
DalongshanDashiba
DashibaShiqiaopu
ShiqiaopuTiaodeng
LijiaYuelai2009
YuelaiShaheba
XinqiaoGaotanyan
GaotanyanXingke Ave.
Xingke Ave.Huashigou
LanhualuHoubao
HoubaoLiyuchi
LiyuchiWangjiazhuang
Phase III (2018‒2023)
TangjiatuoHuangling
YuegangbeiluThe EXPO Garden Center
FuhualuTiaodengnan

Incidents

At around 14:00 of 8 January 2019, an improperly secured air defense lock was struck by an in service Loop line train, derailing it and causing serious damage to the cabcar.[44] The accident injured three employees and one passenger. One of the employees, the driver, later died from their injuries shortly after being sent to the hospital.[45]

Technology

LineRolling stockSignal systemNotes
ManufacturerTrainsManufacturerCBTC
CRRC Changchun Railway Vehicles6As66Traffic Control Technology[46]
CRRC Changchun Railway Vehicles6B53Siemens
Hitachi4HL2rowspan="3"
CRRC Changchun Railway Vehicles4HL25
6HL22
8HL12
CRRC Changchun Railway Vehicles6HL54Hitachirowspan="2"
8HL30
CRRC Changchun Railway Vehicles6As49
CRRC Qingdao Sifang Locomotive & Rolling Stock6As39China Railway Signal & Communicationrowspan="2"
CRRC Changchun Railway Vehicles15
CRRC Changchun Railway Vehicles6B57Siemens
CRRC Changchun Railway Vehicles6B12China Railway Signal & Communication
CRRC Changchun Railway Vehicles6As38
CRRC Changchun Railway Vehicles6As26China Academy of Railway Sciences
CRRC Changchun Railway Vehicles6AsUnited Mechanical & Electrical
CRRC Changchun Railway Vehicles6As15China Railway Signal & Communication

Visual design

Unlike most metro systems of other cities in China, CRT did not follow the design style of MTR Corporation in Hong Kong. The signage system was designed by GK Design Group in Japan, and the monorail lines are based on Hitachi Monorail technology. That gives the Chongqing Rail Transit a distinctive Japanese aesthetic, in contrast to other metro systems in China.[47]

CRT also gave each line a theme about the local culture, and the stations on the line will have some art works in the theme.[48]

LineTheme
Impressions
City spirit
Bashu culture
Folk life
Arts
Provisional capital era
Landscape
Citizens' memories

Expansion

CRT is expected to have 8 lines criss-crossing the urban districts by 2020 and a loop line connecting the commercial areas in the urban area. The other 9 lines are expected to be in operation by 2050.[49]

Phase 4 projects

The short-term plan, including Line 4 (West extension), Line 6 (Extension to Chongqing East Station), Lines 7, 15, 17, 24, 27 and Line 18 (Phase 2) was approved by NDRC.[52] Construction on several lines started in March 2021. In April 2021, Lines 7 and 17 were redesigned from mostly elevated heavy monorails (similar to Lines 2 and 3) to conventional underground Type As metro lines akin to Lines 4, 5, 9 and 10.

Planned openingProjectTerminusTrack typeRolling stockLength New stationsStart of Construction
2025Western extensionMin'an Ave.PanguiluHeavy-rail6As11.292021[53]
Eastern extensionLiujiapingChongqing East StationHeavy-rail6B6.73Mar 2022[54] [55]
2028Phase 1KexuechengJinfengHeavy-rail4/6As27.8182024
2025Phase 1Jiuquhe EastLiangjiang Movie CityHeavy-rail6D38.7142021[56]
2026Phase 2ZengjiaJiuquhe EastHeavy-rail6D32.8112021[57]
2028Phase 1ShijiayuanziDaxuechengHeavy-rail4As14.1792025
2025Northern extensionFuhualuXiaoshiziHeavy-rail6As10.682021
Phase 1Lujiao NorthGuangyangwanHeavy-rail6As19122021
2027Full lineBishanChongqing East StationHeavy-rail6D4914Feb 2022[58]
Phase 2ShengquansiDingshanHeavy-rail6As4.5242Dec 2022[59]

See also

External links

Notes and References

  1. Book: zh:重庆市主城区交通发展年度报告2016. People's Government of Chongqing. zh-cn. 8 April 2017.
  2. Web site: https://www.sohu.com/a/464127961_120388781. zh:416.9万人次!重庆轨道交通单日客运量创历史新高. Chinese: 重庆轨道交通单日客运量首次突破400万乘次,达到416.9万人次。 . zh-CN. Sohu. 2021-05-01.
  3. Web site: 运送乘客237.1亿人次,新增运营里程1168公里…2021年城市轨道交通运营成绩单. 2022-01-13. 2022-07-19.
  4. News: Chongqing inaugurates two metro extensions. https://web.archive.org/web/20230126015152/https://www.railwaygazette.com/metros/chongqing-inaugurates-two-metro-extensions/63406.article. 2023-01-26.
  5. Web site: China's First Urban Monorail System in Chongqing. 2005. Hitachi Ltd..
  6. Web site: 详情. 2021-06-26. www.camet.org.cn.
  7. Web site: http://www.chinanews.com/tp/hd2011/2016/12-28/703954.shtml . zh:重庆轨道交通3号线北延伸段开通迎客. 28 December 2016. China News. zh-cn. 28 December 2016.
  8. News: http://news.163.com/13/1012/21/9B12OUDB00014AEE.html. zh:世界最长单轨线路. 12 October 2013. 19 November 2014. NetEase News. zh-cn. https://web.archive.org/web/20150708163111/http://news.163.com/13/1012/21/9B12OUDB00014AEE.html. 8 July 2015. dead.
  9. Web site: http://www.cqmetro.cn/wwwroot_release/crtweb/ztbd/shx/index.shtml. zh:3号线鱼洞~二塘段基本情况. Chongqing Rail Transit. zh-cn. 19 November 2014. 29 November 2014. https://web.archive.org/web/20141129023415/http://www.cqmetro.cn/wwwroot_release/crtweb/ztbd/shx/index.shtml. dead.
  10. Web site: Sina Visitor System . zh:一不小心创造了又一个第一?. 30 December 2011. Sina Weibo. Chongqing Rail Transit. zh-cn. 19 November 2014 .
  11. Web site: http://www.cqmetro.cn/wwwroot_release/crtweb/xwzx/zhxw/335658.shtml. zh:日本单轨协会副会长石川正和一行来渝考察重庆单轨发展情况. 18 November 2016. Chongqing Rail Transit. zh-cn. 2 December 2016. https://web.archive.org/web/20161202170023/http://www.cqmetro.cn/wwwroot_release/crtweb/xwzx/zhxw/335658.shtml. 2 December 2016. dead. dmy-all.
  12. Web site: CAIJIA RAIL TRANSIT BRIDGE. T.Y. Lin International Group. 1 December 2016.
  13. Web site: 2022-02-03 . 全国最深地铁站红岩村站主体开挖初支完成 . 2023-03-14 . https://web.archive.org/web/20220203142151/https://tunn.cscec.com/xwzx62/gskx62/202003/3053618.html . 3 February 2022 .
  14. Web site: 重庆轨道9号线红岩村站将成为全国最深地铁站_央广网 . 2023-03-14 . cq.cnr.cn.
  15. Web site: 29 December 2017 . zh:重庆10号线红土地站刷新"全国最深地铁站"深度 . http://news.sina.com.cn/c/2017-12-29/doc-ifyqcwaq5659760.shtml . 30 December 2017 . Sina News.
  16. Web site: Liu Chunyuan (Chinese: 刘春暖) . zh:埋深达94米相当于31层楼高 "全国最深地铁站"下还有更深地铁站_社会新闻_大众网 . http://www.dzwww.com/xinwen/shehuixinwen/201712/t20171229_16849660.htm . 27 January 2018 . Danzhong Web . zh-CN.
  17. Web site: 关于轨道交通9号线一期,你想知道的,都在这儿啦!_重庆市人民政府网 . 2023-03-15 . www.cq.gov.cn.
  18. Web site: 重庆9号线一期开通 化龙桥站再现"轨道穿楼"-中国科技网 . 2023-03-15 . www.stdaily.com.
  19. Web site: http://big5.xinhuanet.com/gate/big5/www.cq.xinhuanet.com/2017-11/02/c_1121893052.htm . https://web.archive.org/web/20180210180420/http://big5.xinhuanet.com/gate/big5/www.cq.xinhuanet.com/2017-11/02/c_1121893052.htm . dead . 10 February 2018 . zh:鵝公岩軌道橋高空"穿針引線" 創一世界之最. Xinhua. zh-HK. 10 February 2018.
  20. Web site: http://www.mbec8.com/tabid/5169/InfoID/123798/frtid/5171/Default.aspx . zh:南纪门长江轨道专用桥 - 公司概况 - 中铁大桥局集团第八工程有限公司 - 中国中铁成员企业. The 8th Engineering Co., Ltd., MBEC. zh-CN. 30 December 2017.
  21. Web site: 高家花园轨道专用桥轨道铺设完工--重庆频道--人民网. 2019-11-30. cq.people.com.cn.
  22. Web site: 轨道5号线大石坝站投用. 2018-12-24. 19 January 2021. 27 January 2021. https://web.archive.org/web/20210127194947/http://zizhan.mot.gov.cn/st/chongqing/tupianfengcai/201812/t20181224_3147884.html. dead.
  23. Web site: 重庆轨道交通一号线朝天门至小什字段、五号线一期南段(跳磴至石桥铺段)、六号线支线二期(悦来至沙河坝段)、环线重庆图书馆至重庆西站至二郎段工程初期运营前安全评估服务招标公告. 2020-08-21. https://web.archive.org/web/20200830044104/http://www.cqjtkt.cn/news/2020821/2020821154913325189.htm. 2020-08-30. dead.
  24. Web site: 轨道交通4号线、5号线、10号线和环线 明年部分线路有望建成通车. 17 May 2016.
  25. Web site: Opening of Loop Line Southwestern Section.
  26. News: Chongqing's metro Line 1 now open . 31 May 2021 . China Cities . live . https://web.archive.org/web/20110827204844/http://www.echinacities.com/chongqing/city-in-pulse/chongqing-s-metro-line-1-now-open.html . 27 August 2011 . dmy .
  27. News: Three more rail transit lines to put in use in Chongqing. 17 October 2012. 6 January 2013. Chongqing News. dead. https://web.archive.org/web/20130921061332/http://english.cqnews.net/html/2012-10/17/content_20672410.htm. 21 September 2013. dmy-all.
  28. News: Extended train for Chongqing Light Rail Line 2 to debut in Sept.. Dai Liu. Chongqing News. 19 November 2014. 9 July 2012. dead. https://web.archive.org/web/20141129073626/http://english.cqnews.net/html/2012-07/09/content_17429334.htm. 29 November 2014. dmy-all.
  29. News: http://www.chinanews.com/sh/2013/09-29/5337780.shtml . zh:重庆轨道交通2号线新增3列车上线运行. 29 September 2013. China News. Chongqing Daily. zh-cn. 19 November 2014.
  30. News: Chongqing Rail Transit Line 3 opens to traffic. 30 December 2011. Xinhua. People's Daily Website English Edition. 19 November 2014.
  31. Web site: http://www.cqmetro.cn/wwwroot_release/crtweb/ztbd/shx/zxbd/292883.shtml . zh:3号线鱼洞~二塘段基本情况. Chongqing Rail Transit. 19 November 2014. zh-cn.
  32. News: http://cq.qq.com/a/20140828/012280.htm . zh:3号线8节编组列车外观就是这样的. Liu. Xianke. Tencent Chongqing. zh-cn. 19 November 2014.
  33. Web site: 轨道交通4号线、5号线、10号线和环线 明年部分线路有望建成通车. 17 May 2016.
  34. Web site: 轨道4号线不载客试运行,有望年内投用. 21 June 2018.
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