You can helpexpand this article with text translated fromthe corresponding article in Vietnamese. (April 2022)Click [show] for important translation instructions. Machine translation, likeDeepL orGoogle Translate, is a useful starting point for translations, but translators must revise errors as necessary and confirm that the translation is accurate, rather than simply copy-pasting machine-translated text into the English Wikipedia. Do not translate text that appears unreliable or low-quality. If possible, verify the text with references provided in the foreign-language article. Youmust providecopyright attribution in theedit summary accompanying your translation by providing aninterlanguage link to the source of your translation. A model attribution edit summary isContent in this edit is translated from the existing Vietnamese Wikipedia article at [[:vi:Tuyến 3 (Đường sắt đô thị Hà Nội)]]; see its history for attribution. You may also add the template{{Translated|vi|Tuyến 3 (Đường sắt đô thị Hà Nội)}} to thetalk page. For more guidance, seeWikipedia:Translation.

Line 3
View of the metro line at Chùa Hà station
Overview
Native name	Tuyến số 3
Status	Completed (elevated section), 43.25% under construction (underground) as of August 8th 2024
Owner	Hanoi People's Committee
Line number	3
Termini	Nhon[1] Cau Giay[2]
Stations	Phase 1 (Nhon - Hanoi Station): 8 (current)[3]
Website	hanoimetro.net.vn
Service
Type	Rapid transit
System	Hanoi Metro
Operator(s)	Hanoi Metro Company (HMC)
Depot(s)	Nhổn Depot
Rolling stock	10 4-carriageAlstom Metropolis trains (40 carriages)[4]
Ridership	8,600 passengers/hour/direction
History
Planned opening	Late 2027 (entire route - Phase 1) 2028 (Hanoi - Hoàng Mai)
Opened	8 August 2024; 15 months ago (2024-08-08) (elevated section)[5]
Technical
Line length	Phase 1: 12.5 km (7.8 mi)
Track gauge	1,435 mm (4 ft 8+1⁄2 in)standard gauge
Electrification	Third rail, 750 V DC
Operating speed	35 km/h (22 mph) 80 km/h (50 mph) maximum[6]
Route map Legend  Sơn Tây Nhổn depot T3-S01 Nhổn T3-S02 Minh Khai T3-S03 Phú Diễn Bắc Hồng–Văn Điển railway Nhuệ River T3-S04 Cầu Diễn T3-S05 Lê Đức Thọ Ringway 3 T3-S06 National University T3-S07 Chùa Hà Tô Lịch River Ringway 2 T3-S08 Cầu Giấy  Thạch Bình – Quần Ngựa  T3-S09 Kim Mã  Yên Nghĩa T3-S10 Cát Linh T3-S11 Văn Miếu North–South railway Hanoi–Đồng Đăng railway  Ngọc Hồi – Yên Viên  T3-S12 Hanoi  Yên Sở This diagram: view talk edit

Hanoi Metro Line 3, also known as theLine Nhổn - Ga Hà Nội, is amedium-capacityrapid transit service of the Hanoi Metro network, operated by Hanoi Metro Company. Colored dark red on transit maps, the line currently runs from Nhổn, a suburb in Bắc Từ Liêm District, west of city center, to its current terminus in Cầu Giấy Bus Interchange, located in Cầu Giấy district. When fully operational, the line will continue eastbound toward Hanoi Station, providing a direct connection to downtown Hanoi and the city's main railway station. The line operates between 5.30 am and 10pm, with headways of 6 minutes during peak hours (7 am - 8.30 am and 4.30 pm to 6pm), and 10 minutes during off-peak hours. All trains on Line 3 operate with a 4-cars formation.

This line was the first to be built in Hanoi Metro network, starting construction in September 2010 with an expected completion date in late 2016, with a budget of 18 trillion VND^[7] (US$1 billion in 2010) However, the project was plagued with delays and budget overrun, total about 34.532 trillion VND (US$1.46 billion) in 2022.

The line is divided into three segments: The first segment, which runs from Nhổn to Hanoi Station. This segment is 12.5 kilometres (7.8 mi) long, consists of 12 stations in total,^[8] with the first 8.5 kilometres (5.3 mi) (between Nhổn and Cầu Giấy) running elevated, while the last 4 kilometres (2.5 mi) (between Cầu Giấy) and Hanoi Station running underground. In addition, there have been plans for a southern extension (second segment), which will run from Hanoi Station to southern district of Hoàng Mai, and a northern extension (third segment) toward Sơn Tây.^[9] Currently, only the elevated phase of first segment (between Nhổn and Cầu Giấy) is operational. About 20% of Hanoi's population in 6 districtsBa Đình,Cầu Giấy,Đống Đa,Hoàn Kiếm,Nam Từ Liêm andBắc Từ Liêm can benefit from this line.

Line 3 dated back to 1998, when the Vietnamese government approved the 2020 vision Master Plan, which prioritise the building of a rail transit system, with a target to build 5 metro lines. Line 3 was one of the original lines considered in the master plan.^[10]

Two separate preliminary feasibility studies was conducted in 2004 and 2005 with the help of theAsian Development Bank to determine the viability of Line 3.^[11]

Four options were originally considered:

1. An elevated metro line running from Nhổn depot to Swedish Embassy on Kim Mã Avenue, then running underground to Hanoi Station;
2. An at-grade tramway section between Nhổn and Ringway 3, then an elevated line to Swedish Embassy on Kim Mã Avenue, then running underground to Hanoi Station;
3. Similar to option 2, but the at-grade tramway would be converted to a dedicated metro line;
4. An at-grade tramway section between Nhổn and to Swedish Embassy on Kim Mã Avenue, then running underground to Hanoi Station.

Out of all options, options 2 and 3 were eliminated from further consideration due to congestion and performance issues associated with a mixed circulation tramway system. Option 4 was discounted from further consideration because even though it involved a system operating on a partially dedicated route, significant adverse changes to traffic management were required, particularly at intersections and pedestrian crossings and it would have resulted in reduced operating efficiencies and travel times. As a result, option 1, which was forecasted to carry up to 458,000 people daily,^[12] was selected as the preferred option.^[13]

The name and location of stations were finalized in the 2009 Final Feasibility Study. Based on this study, fifteen stations were reduced to 12 stations, 8 elevated and 4 underground. A twin bored tunnel concept using tunnel boring machines (TBM) was selected to tunnel 15 to 8 m underground and to utilize the centerline of existing surface roads. Two underground stations, Cát Linh and Văn Miếu, were relocated one block eastward to avoid cultural significant sites.^[13]

Beside 276 million euros from the Hanoi city's budget, the project also receives 726 million euros from the four donors - the French government (DGT),French Development Agency (AFD), Asian Development Bank (ADB),^[14] andEuropean Investment Bank (EIB).

Implementation of the project is delayed by four years compared to the original schedule with completion expected in 2021. As of March 2017, the project has achieved 30% physical progress over the elapsed project life of 9 years. However, the project completion is expected to be delayed to 2027.^{[15][16][17][18][19]}

Route of the Hanoi Metro Line 3 as of now

Line 3: Nhổn - Hanoi Station section starts from Nhổn - to National Highway 32 - Cầu Diễn - Mai Dịch - Ring road 3 intersection - Cầu Giấy (ring road 2 intersection) - Kim Mã - Giang Vo - Cát Linh - Quốc Tử Giám and ends at Tran Hung Dao Street, in front of Hanoi Station.

The 1st phase of Line 3 has 12 stations including 8 elevated stations (Nhổn, Minh Khai, Phú Diễn, Cầu Diễn, Lê Đức Thọ, Vietnam National University, Chùa Hà, Cầu Giấy) and 4 underground stations (Kim Mã, Cát Linh, Văn Miếu, Hanoi Station), with concourse level, elevators and lifts. The railway platform is 109 metres (358 ft) long.

Station symbol	Station name		Metro transfers	Distance between stations	Total distance	Location
	English	Vietnamese				Ward/Commune
T3S01	Nhon	Nhổn	(planned)	0 km (0 mi)	0 km (0 mi)	BetweenTây Tựu andXuân Phương
T3S02	Minh Khai	Minh Khai		1.129 km (0.702 mi)	1.129 km (0.702 mi)	BetweenPhú Diễn andXuân Phương
T3S03	Phu Dien	Phú Diễn	(planned)	1.174 km (0.729 mi)	2.303 km (1.431 mi)
T3S04	Cau Dien	Cầu Diễn		0.831 km (0.516 mi)	3.134 km (1.947 mi)	BetweenPhú Diễn andTừ Liêm
T3S05	Le Duc Tho	Lê Đức Thọ		1.125 km (0.699 mi)	4.259 km (2.646 mi)
T3S06	National University	Đại học Quốc Gia	(planned)	1.03 km (0.64 mi)	5.289 km (3.286 mi)	Cầu Giấy
T3S07	Chua Ha	Chùa Hà	(planned)	1.225 km (0.761 mi)	6.514 km (4.048 mi)
T3S08	Cau Giay	Cầu Giấy		1.165 km (0.724 mi)	7.679 km (4.772 mi)	BetweenGiảng Võ andLáng
T3S09	Kim Ma	Kim Mã	(planned)	1.198 km (0.744 mi)	8.877 km (5.516 mi)	Giảng Võ
T3S10	Cat Linh	Cát Linh		1.52 km (0.94 mi)	10.397 km (6.460 mi)	Ô Chợ Dừa
T3S11	Van Mieu	Văn Miếu		0.871 km (0.541 mi)	11.268 km (7.002 mi)	Văn Miếu - Quốc Tử Giám
T3S12	Ha Noi	Hà Nội	(planned)	0.701 km (0.436 mi)	11.969 km (7.437 mi)	Cửa Nam

^[20]

• 
  Cau Giay station
• 
  Chua Ha station
• 
  Lê Đức Thọ station
• 
  National University station
• 
  Nhổn Station

The 2nd phase of Line 3 will have 7 more stations (Hàng Bài, Trần Thánh Tông, Kim Ngưu, Mai Động, Tân Mai, Tam Trinh, Yên Sở) all being completely underground with 1 depot located near Yên Sở Pumping Station. This section is 8786 m long (8.13 km underground, the remaining is for tunnel and on ground).

Station symbol	Station name		Metro transfers	Distance between stations	Total distance from S01	Location
	English	Vietnamese				Ward
T3S13	Hang Bai	Hàng Bài	(connects withTrần Hưng Đạo) (planned)	0.657 km (0.408 mi)	12.626 km (7.845 mi)	Cửa Nam
T3S14	Tran Thanh Tong	Trần Thánh Tông		1.232 km (0.766 mi)	13.858 km (8.611 mi)	Hai Bà Trưng	Phạm Đình Hổ
T3S15	Kim Nguu	Kim Ngưu		0.981 km (0.610 mi)	14.839 km (9.221 mi)		Thanh Lương
T3S16	Mai Dong	Mai Động		1.193 km (0.741 mi)	16.032 km (9.962 mi)	Hoàng Mai	Mai Động
T3S17	Tan Mai	Tân Mai	(planned)	1.353 km (0.841 mi)	17.385 km (10.803 mi)		Hoàng Văn Thụ
T3S18	Tam Trinh	Tam Trinh		1.443 km (0.897 mi)	18.828 km (11.699 mi)		Yên Sở
T3S19	Yen So	Yên Sở		0.869 km (0.540 mi)	19.697 km (12.239 mi)

^[21]

Beginning fromAug. 1st 2025, Line 3's fares are as follows:

There are also timed tickets ranging from 1 day to 12 months.

• Land acquisition and resettlement: To transform Hanoi's transport system, the government may acquire some land along segments of the line, and around Nhon depot. A Resettlement Plan has been prepared and updated for the project, which is consistent with the Asian Development Bank's Safeguards Policy Statement, and the updated Resettlement and Compensation Policies of the government of Vietnam.
• Environmental management: The development of the line involves significant construction works, which can generate adverse environmental impacts. These have been assessed in an international standard environmental impact assessment. The most significant impacts affecting Hanoi citizens during construction may include excessive dust and noise, traffic disturbances, and the relocation of mature trees along the metro alignment. All contractors have developed and are implementing robust environmental management plans and engineering solutions to minimize environmental impacts, and respond to any event. Overall, environmental benefits including improved air quality, reducedgreenhouse gas emission and enhanced community health and safety will significantly outweigh the adverse environmental impacts.

• Hanoi Metro Line 2A
• Transport in Vietnam
• HCMC Metro
• Megaproject
• Hanoi Metro

Media related toLine 3, Hanoi Metro at Wikimedia Commons

• Cầu Diễn Station
• Cầu Giấy Station
• Kim Mã Station
• Minh Khai Station
• Văn Miếu Station

• Hanoi Metro
• Cầu Giấy
• Ô Chợ Dừa
• Văn Miếu Quốc Tử Giám
• Rapid transit in Vietnam
• Proposed public transport in Asia
• Railway lines opened in 2024

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