Photo: VietNamNetPrimary school students look tired on a school bus at Giap Nhat Street. (Photo:Vietnamnet)Vehicles creep along at a snail’s pace as traffic jams at Kim Lien tunnel in Xa Dan Street, Hanoi from the early morning. (Photo: Vietnamnet)In HCM City, thousands of vehicles are packed into the streets leading to Tan Son Nhat airport. (Photo: Labour Newspaper)Serious traffic congestion in front of the entrance to Tan Son Nhat airport. (Photo: Labour newspaper)As Tet nears, people are crowding into the international terminal at Tan Son Nhat airport from morning till midnight.