The fifth of eight metro routes Hanoi plans to build by 2030 is likely to cost as much as US$5.34 billion if it is elevated, VnExpress reported Tuesday, quoting the project's preliminary feasibility study.
But if it is built underground, the 41 kilometer-line running from the city center to Hoa Lac Hi-tech Park will cost $3.75-4.2 billion, it said.
Another option is for the line to be built partly underground and partly at an elevation at $4.28-4.79 billion, according to the study presented at a meeting held by the Ministry of Transport in Hanoi Monday.
Deputy Minister of Transport Le Manh Hung said that a study would be completed in July by Vietnamese agencies together with the Japan International Cooperation Agency.
Currently three metro routes are being built in Hanoi at a total cost of over $2.4 billion, with two of them to be completed in 2016-17, VnExpress reported.