They have now have 2/3 of the worlds high speed rail despite starting incredibly late in the game, and not having a ton of people that can afford it.
Turns out, in a communist government you can cut through red tape incredibly easily to advance your goals for the party/country. This is common for communist govs, and not democracies. When you believe land ownership should be private, and everyone has a super strong opinion about things, it’s hard to advance infrastructure at a speed commensurate with societies needs.
Not an argument for communism, just an observation. Likely lacks some nuance, but just do a bit of research on China’s infra, and their heavy investment in that space.