This isn't a real metro.
> My city has had and automated metro for nearly 40 years.
Every year, in every country, there are failures that lead to fatalities. They are, thanks to technology, decreasing.
> It’s rather easy with rail.
It takes hundreds of engineers years to safely design and implement a train control system, and it branches out with complexity. Every year, cascading failures cause serious issues.
It sounds easy. It's not.