The number of passengers who use the Cat Linh-Ha Dong urban metro line - the first of its kind in Vietnam - has been increasing since it was put into operation three years ago. According to Vu Hong Truong, General Director of the Hanoi Metro - the operator of the Cat Linh - Ha Dong urban metro line, after three years of operation, the line currently serves over 35,000 passengers daily. Source: Vietnam News Agency