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Introduction The North-South high-speed rail development is a completely new field in Vietnam. Calculations show that Vietnam's high-speed rail system will attract a significant amount of investment, which is 4-5 times higher than developing highways, and the annual operation and maintenance costs are three times higher. Methods Public-Private Partnership (PPP) investment is effective and required to ease the strain on the state budget. This research aims to build a database for calculating the financial efficiency of the high-speed rail project (Hanoi -Vinh line), thereby establishing a mechanism for sharing benefits and risks between the state and investors through financial scenarios: applying Build - Operate - Transfer (BOT) contracts with state participation rates of 50% and 80%, respectively. Results The qualitative research method is used to determine the indicators influencing the project's benefits and costs, assume and adjust economic, financial, and fare parameters based on Vietnam's actual conditions, and investigate and survey the affected areas to assess passenger transport demand. Conclusion Furthermore, the financial efficiency of the project is calculated, and various participation options for the parties involved are proposed to attract investors.
Dung et al. (2024) studied this question.