Yes. I spent four weeks in a classroom at the training centre with the Train Operating Company I did it with, then two weeks of mentoring in the ticket office itself. There is far too much to be learned to make part time training effective. TOCs tend to look unfavourably if you start missing days of the training. It's not an ideal situation. I was a student at the time so I was incredibly lucky that all of the training took place in the summer holidays.