The Vietnam Expressway Corporation (VEC) has proposed the Ministry of Construction to expand Cau Gie – Ninh Binh Expressway from four to six lanes to ease congestion and meet rising traffic demand.

The 50-km route, which has been in operation since 2012, is now frequently overloaded, with traffic growing by about 10% annually.

The project is targeted for completion by 2027.

VEC noted that while the Phap Van – Cau Gie section has already been widened to six lanes and the Cao Bo – Mai Son section is being expanded, the Cau Gie – Ninh Binh stretch remains a bottleneck. Without expansion, the 50-km segment would continue to restrict traffic flow along the north-south route.

The corporation also proposed studying the possibility of further upgrading the expressway to 10 lanes in the future, depending on traffic demand.