Why are there only two subways in Guiyang?

There are only two subways in Guiyang for the following reasons:

1. First of all, as a small and medium-sized city, Guiyang has a relatively small population and urban development speed compared with some big cities. Therefore, the traffic demand of the city is relatively low, and there is no need to build a large-scale subway network like a big city.

Secondly, the geographical environment of Guiyang also limits the subway construction. Guiyang is located in the mountainous area, with complex terrain and many hills and rivers intertwined. This brings difficulties and challenges to the planning and design of subway lines, and it is necessary to overcome the problems such as topographic relief and river crossing, which increases the difficulty and cost of construction.

In addition, subway construction needs huge capital investment, including the cost of construction and operation. Guiyang's economic strength and capital investment are limited, so it is impossible to build a large-scale subway network at once. Therefore, in the process of planning and construction, the government may choose to gradually expand, build several lines first, and then expand when urban development needs and financial resources permit.

Finally, the government has also considered other traffic construction and planning strategies. In addition to the subway, Guiyang is developing other modes of transportation, such as public transportation, light rail and trams. , to meet the different levels of urban traffic demand, and in the overall traffic planning for coordination and overall consideration. Subway system is a kind of urban public transportation, which usually consists of underground or elevated railways, and is used for fast and efficient transportation within or between cities.