It will be interesting to see how long China's frenetic metro expansion lasts. Japan went through a very similar phase after the war, but this slowed down mark

It will be interesting to see how long China's frenetic metro expansion lasts. Japan went through a very similar phase after the war, but this slowed down markedly after the Bubble burst. With population growth now strongly negative, there's no business case for building more and Japan completed what's likely its last line a few years ago. https://gyrovague.com/2015/12/18/the-last-subway-line-in-japan/ https://gyrovague.com/2015/12/18/the-last-subway-line-in-jap... (Disclaimer: my blog) China, too, faces an upcoming and likely even more severe population crunch. India, on the other hand, is only just getting started and is now building metros with a similar pace as China in the 1990s.