Cars move by inches over more than two km near a toll station on Phap Van - Cau Gie Expressway in southern Hanoi at 4 p.m. Wednesday.
The area sees heavy traffic jams before and after every big holiday.
The Lunar New Year begins on Saturday and the official break lasts from Thursday to Wednesday next week.
Many people in both Hanoi and HCMC took an early holiday and already left the cities last weekend.
Photo by Huy Manh