Why?

The current tram system takes up a lot of surface space, that would be more well used for other things. Also metros are cool

How?

Simple build a couple of metro stations and connect them with tunnels. We can also move some water elevators to the metro stations which will make the surface (especially blair mountain str) look much nicer.

Who?

i can do most of the world

Layout

here is a layout of my suggestion for a metro system https://imgur.com/AQdYYWG