Hanoi – Haiphong Expressway (CT.04), Vietnam

Primary guess

Confidence

• Level: High
• Why:
- The road sign visible in the bottom right of the image clearly displays the text "Nội - Hải Phòng", which is the standard abbreviation for the "Hà Nội - Hải Phòng" expressway (often referred to as CT.04 or National Highway 5B).
- The infrastructure features, such as the multi-lane divided highway with concrete median barriers, high-mast lighting, and specific guardrails, are characteristic of this major Vietnamese expressway.
- The surrounding landscape—a mix of rural rice fields and nearby semi-urban or industrial structures—is typical for sections of this route as it passes through the provinces of Hưng Yên and Hải Dương.

Visual evidence

• **Road Signage:** The sign "Nội - Hải Phòng" in the lower-right foreground is a direct indicator of the highway's name.
• **Infrastructure:** The road is a high-standard, multi-lane controlled-access expressway (CT.04) with a concrete median divider, consistent with modern Vietnamese highway standards.
• **Environment:** The scene shows typical Northern Vietnamese flatland scenery, including extensive rice paddies and scattered residential/commercial buildings, which align with the geography of the Red River Delta through which this highway passes.
• **Vehicles:** The presence of a white minivan on the right is consistent with typical traffic on Vietnamese expressways.

Reasoning

The road sign is the definitive piece of evidence. The "Hà Nội – Hải Phòng Expressway" (CT.04) is one of the most prominent expressways in Northern Vietnam, connecting the capital city of Hanoi to the major port city of Haiphong. The text "Nội - Hải Phòng" seen on the road sign is a truncated version of the full name "Hà Nội - Hải Phòng" commonly found on directional signs along this route. Alternative locations, such as the "Hạ Long - Hải Phòng" expressway or "Nội Bài - Lào Cai" highway, are incorrect because those routes have different designations (CT.06 and CT.05, respectively) and different naming conventions on signage. The visual characteristics of the landscape and the road type perfectly match the described path of the Hanoi – Haiphong Expressway.

Links

• Hanoi–Haiphong Expressway (Wikipedia)

Coordinates

• Approximate coordinates: 20.9000, 106.3000 (The highway spans a long distance through several provinces, but this captures the general central region of the route.)