Hanoi Neighborhoods & Routes
Western Hanoi: Metro Line 3 at Cau Giay and Two Ring Road 3 Underpasses
About 6 minutes to read
Two things shape a trip across western Hanoi at present: the elevated Metro Line 3, which currently ends at Cau Giay, and a stretch of Ring Road 3 where underpass projects change how traffic moves. This guide sets out what dated sources say about both. This guide does not cover My Dinh or street-by-street riding in Cau Giay, because the sources reviewed do not describe them.
Metro Line 3 at Cau Giay
Anyone who plans to combine a bike with the metro needs to know the line’s status. The table collects what the sources say.
| Item | What the source says | Source and date |
|---|---|---|
| The line | Nhon to Hanoi Railway Station, 12.5 km, 12 stations (8 elevated, 4 underground) | European Investment Bank press release, 20 October 2026 |
| Operating section | The elevated section from Nhon to Cau Giay has run commercially since August 2024 | VietnamPlus, reporting the 19 October 2026 ceremony; EIB press release |
| Underground section | Four stations from Cau Giay to Hanoi Railway Station, scheduled to open in 2027 under the government’s current implementation plan | EIB press release, 20 October 2026 |
| First year | 6.4 million passengers in the first year (the operator’s figure, quoted by a financier) | EIB press release, 20 October 2026 |
| Fares | Set under Hanoi People’s Committee Decision 3316/QD-UBND of 27 June 2025 and document 3553/QD-UBND of 30 June 2025; the amounts are not in the text reviewed | Hanoi Metro Company fare page, no date shown |
Until the underground section opens, Cau Giay is the end of the operating line. The operator’s English page, which carries no date, lists the stations from Nhon through Le Duc Tho, Vietnam National University Hanoi and Chua Ha to Cau Giay, then Kim Ma and onward. Its news items appear to date from before the line opened, so the page may be out of date and no operating hours are given here. Neither that page nor the other sources say which stations have motorbike parking or a park-and-ride, so nothing here supports a plan to leave a bike at a station and finish the trip by metro. Fare amounts are not given either; ask the operator for the current table.
The two big junctions on the line
The operator’s page says the Nhon to Hanoi Railway Station route passes through two large intersections, Mai Dich and Cau Giay, and that when completed they will have three levels of roads, overpasses and overhead rail. Because the page is undated and partly written in the future tense, it does not show what these intersections look like today. They are the only junctions the sources name along the metro route, and the sources add nothing about traffic flow at either.
The Me Tri underpass: planned, not open
Lao Dong newspaper reported on 18 October 2026, citing Hanoi People’s Committee Decision 6475/QD-UBND, that the city is preparing a 655 m, six-lane underpass at the Me Tri junction on Ring Road 3. The aim is to ease congestion on the western side of the capital, and completion is planned for the end of 2027. The tunnel is a straight-through design for the Me Tri to Duong Dinh Nghe direction. The report names the junction both as Me Tri–Pham Hung–Ring Road 3 and as Me Tri–Duong Dinh Nghe–Ring Road 3.
On 18 October the preparatory work was largely finished, trees were being cleared, and the contractor was waiting for the Department of Construction’s go-ahead to start building. The tunnel is therefore not a usable route. The report describes no traffic arrangements for the construction period, so check for roadworks or lane changes before riding past.
The Le Van Luong underpass: opened in October 2022
Hung Yen Newspaper, reprinting a Hanoi Moi report of 5 October 2022, covered the opening of the Le Van Luong underpass at the Le Van Luong–Khuat Duy Tien junction on Ring Road 3. The report presents the underpass as improving transport for the western part of the capital and does not place it in Cau Giay. Its main points were:
- The underpass and the barriers at both ends measure 475 m in total, of which 95 m is a closed tunnel and 380 m is the open section and approach barriers.
- It is made up of two separate tunnels, each 7.75 m wide, with two motor-vehicle lanes of 3.5 m each.
- Traffic runs in both directions through it between Le Van Luong and To Huu.
- Vehicles on Khuat Duy Tien (Ring Road 3) may not turn left onto Le Van Luong or To Huu. They go straight through the junction, make a U-turn at one of two openings in the median and turn right.
- Non-motorised vehicles, pedestrians and vehicles taller than 4.75 m may not use the underpass.
The report speaks of vehicles in general and does not mention motorbikes by name. It is a 2022 account, so signs on the day take priority over what it describes.
What the sources do not cover
The sources reviewed say nothing about Xuan Thuy, Cau Giay street, Pham Hung, Tran Duy Hung, Thang Long Boulevard or the Mai Dich junction beyond the junction name above. They also say nothing about parking, peak-hour congestion, one-way streets, speed limits or motorbike restrictions in these districts. Any such detail should come from signs, the local traffic authority or the rental shop, not from this page.
What to check before you ride
- Junction layout. Look for fresh local news on the Me Tri junction before riding past it, since works were about to begin on 18 October 2026.
- Turning rules. Read the signs at Ring Road 3 junctions; the Khuat Duy Tien left-turn rule above dates from 2022.
- Parking. Ask the rental shop and the building you are visiting; the sources give nothing on parking in the west.
- Metro fares and hours. Check the operator’s current fare table and timetable before relying on either.
- Choosing a bike. Motorbike Rental Hanoi: How to Choose the Right Bike is a starting point for comparing what to rent.
- General rental questions. Motorbike Renting in Hanoi: Requirements and Tips – Complete Guide covers requirements and tips for renting in Hanoi.
- A day beyond the west. Motorbike Rental Hanoi: Best Day Trips Around the City covers the best day trips around the city.
Sources checked
- Hanoi Metro Company (HMC), English homepage, no date shown: Line 3 route and stations, and the Mai Dich and Cau Giay intersections. metrohanoi.vn English homepage
- Hanoi Metro Company (HMC), fare page, no date shown: the decisions that set Line 3 fares. metrohanoi.vn metro fares page
- European Investment Bank press release, 20 October 2026, on the plaque-unveiling event with the Hanoi People’s Committee, AFD and ADB: Line 3 length, stations, operating and underground sections, station code and first-year figures. eib.org press release on Hanoi Metro Line 3
- VietnamPlus (Vietnam News Agency), reporting the 19 October 2026 ceremony: the August 2024 start of the elevated section from Nhon to Cau Giay. en.vietnamplus.vn report on Hanoi Metro Line 3
- Lao Dong newspaper, 18 October 2026, citing Hanoi People’s Committee Decision 6475/QD-UBND: the planned Me Tri underpass. laodong.vn report on the Me Tri underpass
- Hung Yen Newspaper, reprint of a Hanoi Moi report, 5 October 2022: the opening, dimensions and traffic rules of the Le Van Luong underpass. baohungyen.vn report on the Le Van Luong underpass
Thuê xe máy Nguyễn Hà is open 09:00–21:00 daily at Ngõ 5 Nguyễn Văn Cừ, Bồ Đề, Long Biên, Hà Nội (near Gia Lâm bus station). Phone: 0334 699 969.