Determination of some operation criteria of metro trains on the Cat Linh - Ha Dong urban railway line

Abstract

Currently, in Vietnam, only three urban railway lines are being built, of which two lines in Hanoi: Cat Linh - Ha Dong (line 2A), Nhon - Hanoi Station (line 3) and a line in Ho Chi Minh City: Ben Thanh - Suoi Tien (line 1). The Cat Linh - Ha Dong line has been put into operation since November 2021, the Nhon - Hanoi Railway Station (Nhon - Cau Giay elevated section) is preparing to be put into operation in July 2024, the Ben Thanh - Suoi Tien line is expected to be put into operation at the end of 2024. Urban railway projects in Vietnam are all implemented by foreign contractors who are only responsible for construction and then handover to Vietnam for operation. Testing some basic features related to operational safety as well as determining and evaluating operation criteria in Vietnam are still completely new and need to be researched.

The article presents a general theoretical basis for calculating the operation criteria of metro trains on urban railways and then calculating specific operation criteria of metro trains on the Cat Linh - Ha Dong line in some different operating speeds and load modes of trains.

The research results are a reference basis for managers and users in determining and evaluating the operation criteria of metro trains.