Understand the asset as a connected system of infrastructure, operations and access.
Key things to understand
- Treat this as Hanoi's connection into an interregional corridor, not a 105.5 km Hanoi-local road.
- The full route opened in 2015 and is mature operating infrastructure.
- Government reporting in 2026 describes CT.04 as fully invested to its planned six-lane scale.
- For freight, Ring Road 3 access, interchanges and port last mile matter more than headline length.
- Do not freeze toll tables or travel times in stable canonical data.
- Design speed is not a guaranteed average operating speed.