1, passenger flow stability: Changchun subway, as an important part of urban traffic, has a stable passenger flow. With the development of the city and the increase of population, the passenger flow of the subway is also increasing gradually, which brings stable income to the subway.
2. Fare income: The fare income of Changchun Metro is one of its main sources of income. Although the fare is relatively low, due to the stable passenger flow, the fare income is still considerable.