(Engineering Daily) Reporter Nguyen Anh Duong = Vietnam's Hanoi subway has become visible.

According to local sources on the 31st, the Hanoi subway line No. 1 has applied for approval for safety inspections ahead of commercial operations.

As a result, the Hanoi subway line No. 1 project is expected to begin full-scale operation soon after the safety inspection is completed.

The Hanoi subway line No. 1 project has been under way by China's six railway groups, but the project has been delayed far beyond the previous 2013 target of completion due to financial problems and other than the previous one.

As a result, it is expected to pose a problem in the future as the current delay has not addressed the additional cost problem.