CHRIS BISHOP (National—Hutt South): Thank you, Mr Chair, and thank you, Minister of Transport, for that answer. There's a wee nugget that I suspect people may be interested in, which is the question of price and pricing and demand management, which I think people would cautiously acknowledge is something that needs to happen, and we look forward to hearing more about that in due course. I want to ask the Minister about the third and fourth main line in Auckland. I acknowledge the Government's commitment through the New Zealand Upgrade Programme to starting work on the third main, and I just ask the Minister whether or not consideration was given to doing the third and fourth at the same time. There's quite a lot of support, certainly from my experience in Auckland in particular, for futureproofing that line. You won't find many people who disagree that we desperately need the third main now, and probably within five to 10 years we'll need the fourth—so whether or not consideration was given to that and whether or not the Government would look at expediting doing the fourth at the same time as they do the third. My understanding from reading the business case from, I think, two or three years ago is that there are—I think the phrase used was "cost synergies"—to doing the fourth at the same time as doing the third, and certainly if you did that it'd have the National Party's support.