[SurrealSoul]

This doesn't stop private corporations from attempting. The Hyper loop and whatever they are calling the subway system that they are developing are "developing" still.

New York is adding a pretty massive LIRR line, so it seems like things are going ok

[Gpetrium]

Some of the legislations implemented in the past 50 years has led to a bunch of projects becoming prohibitively expensive, even for the private sector. The Hyper Loop is a good example of the exceptions.

[setpatchaddress]

Hyperloop is not an exception. The technology is not the actual problem. The problem is right-of-way. Hyperloop, light rail, monorail, pneumatic tube, whatever, you need someplace to run the line.