Congestion occurs on a route leading to Tan Son Nhat Airport in Ho Chi Minh City. Photo: Chau Tuan / Tuoi Tre In addition, gateway routes into and out of Ho Chi Minh City such as National Highway No.1, the Ho Chi Minh City - Long Thanh - Dau Giay Expressway, and the Ho Chi Minh City - Trung Luong Expressway were often overloaded during peak hours. Photo: Thu Dung / Tuoi Tre Congestion occurs along the Ho Chi Minh City - Long Thanh - Dau Giay Expressway. Congestion occurs on a route leading to Tan Son Nhat Airport in Ho Chi Minh City. Photo: Chau Tuan / Tuoi TreIn addition, gateway routes into and out of Ho Chi Minh City such as National Highway No.1, the Ho Chi Minh City - Long Thanh - Dau Giay Expressway, and the Ho Chi Minh City - Trung Luong Expressway were often overloaded during peak hours.