Relevant units are considering hiring a new security company to safeguard railcars of Ho Chi Minh City’s metro line No. 1 at Long Binh Depot in Thu Duc City, Ho Chi Minh City. Relevant units are considering hiring a new security company to safeguard railcars of Ho Chi Minh City’s metro line No. 1 at Long Binh Depot in Thu Duc City, Ho Chi Minh City. Photo: Chau Tuan / Tuoi TreThe metro service is 19.7 kilometers long, including 2.6 kilometers of underground railways and 17.1 kilometers of elevated tracks.