How many metros are there in the world?

In 2017, there were 110,383 metropolitan units in the world, including underground, tramways, and telepherics.

If you want to know more, please go here. This data was sourced from the book Transportation and the Belt and Road Initiative, in which more data as well as the original primary sources of the data are available.

Nicolas de Loisy

Advisory specialized in logistics, transportation, and supply chain management.