I've read that is wrong, depending on what you define as (usable) train. Allegedly there are the 'green' trains, because using older green wagons. They aren't

I've read that is wrong, depending on what you define as (usable) train. Allegedly there are the 'green' trains, because using older green wagons. They aren't high-speed, but drive everywhere. As do busses. Which allegedly you can use. Just takes longer.