Saw the quote below in INTERVIEW: The Man in Seat 61... - Londonist:
If you had a magic wand, what one thing would you do to improve London’s current transport problems?
We urgently need Crossrail, and Thameslink 2000 (or is it 3000 by now?). Like the RER in Paris, this will bring suburban trains right through the centre of the city and out the other side, relieving the Underground and for many passengers, avoiding the need to switch from train to Tube at all. But whereas other countries seem to plan ahead, we Brits prefer things to reach crisis point before we do anything.