[xanipher]

Most of the Japan railway system was built by the state and privatized later.

[SmellyGeekBoy]

Building it isn't the difficult part, keeping it running efficiently is. See: Britain.

[Lio]

Ironically most of the railways in Britain were built independently by private companies then nationalised then privatised again.

[mcintyre1994]

Not too sure what you're getting at, but the only part of Britain's rail network that runs acceptably is TFL which isn't privatised.

[ekianjo]

So what? what is expensive on a daily basis is maintenance and operations. That's the killer.