The eastern wing of the North-South Expressway will have 36 rest stations. (Photo: VNA)

Of them, six have been put into service, three under construction and the remainders yet to receive investment. The North-South transport corridor, in which the North-South Expressway from Lang Son to Ca Mau acts as the “backbone”, plays an important role in national economic development. The expressway runs through 32 provinces and cities, connecting four key economic regions, including two major economic centres - Hanoi and Ho Chi Minh City. Vietnam targets 5,000km of expressways by 2030.