The Ring Road 4 of Hanoi Capital Region is implemented in 7 component projects, of which component project 3 is the "backbone" including a highway nearly 113km long (the section through Hanoi is 57km long, Hung Yen 19km, Bac Ninh 27km and the connecting route towards Noi Bai - Ha Long Expressway is about 9.7km).
Of which, the low-lying section is about 32km long, the elevated section is more than 80km long. The road has 6 lanes, a parallel road system on both sides, a green corridor, technical infrastructure works and land reserved for the belt railway. The designed speed of the route is 100km/h.

The project will invest in the construction of 8 complete interconnecting intersections. Of which, 5 are in Hanoi; 2 are in Hung Yen province; 1 is in Bac Ninh province. At the same time, the project invests in building 7 up and down branches connecting to the parallel roads on both sides.
In mid-June 2025, the Hanoi People's Committee approved the results of the selection of investors to implement component project 3 - Investment in the construction of expressways under the form of public-private partnership, under the investment project to build the Ring Road 4 in the Hanoi Capital Region.
Accordingly, the winning investor was the joint venture City Land - Sunflower - VEC - Horizon (City Real Estate Investment Company Limited - Saigon Duong Hoa Huong Company Limited - Vietnam Expressway Development Investment Corporation - Horizon Investment Joint Stock Company Limited). type of Construction - Business - Transfer (BOT).
The total investment and capital structure of the project will be accurately determined after negotiation and completion of the project contract between the contract signing agency and the investor.
The investment project implementation period is expected to be basically completed in 2026 and put into operation in 2027. Adjusted when the competent authority considers and approves. The time to collect the refund fee (according to the investor's proposal) is 21.36 years.
According to information from the Ministry of Construction, localities as the governing bodies are continuing to implement procedures to start construction of 3 expressway projects, including component project 3 of Ring Road 4 of Hanoi Capital Region on the occasion of August 19, 2025.

At the 25th session of the 16th Hanoi People's Council held in July 2025, Vice Chairman of the Hanoi People's Committee Truong Viet Dung said that the city will speed up transportation projects, starting the construction of Tran Hung Dao, Ngoc Hoi, Van Phuc bridges on the occasion of National Day 2.9 and Thuong Cat on the occasion of 10.10.2025.
For urban railway projects, the city requires the Urban Railway Management Board to focus, preside over and closely coordinate with the city's departments, branches, People's Committees of communes, wards and related units, urgently implement the direction of the Chairman of the City People's Committee in Notice No. 414/TB VP dated July 8, 2025 of the City People's Committee Office, deploy investment projects to build urban railway lines starting in 2025 to ensure the required progress.
It is expected that route No. 2, Nam Thang Long - Tran Hung Dao will start construction on October 10 and route No. 5, Van Cao - Hoa Lac on December 19, 2025.