I thought this was sort of proposal was a thing of the past but apparently not. Can anyone ever imagione the government allocating £5.1bn to the rail network? Yeah. Right.
These links might elucidate the matter further.
In response to the comments I would like to rephrase a sentence above. It should read: "Can anyone ever imagine the government allocating £5.1bn to spend directly on the rail network and rolling stock instead of penalty payments to the regulator, director's bonuses and marketing campaigns?