It’s not yet officially confirmed, but Prime Minister Rishi Sunak will formally announce that High Speed 2 will be paused north of Birmingham. All media reporting on this issue – BBC, Reuters, Sky, Telegraph – centers the issue of costs; the Telegraph just ran an op-ed supporting the curtailment on grounds of fiscal prudence.
I can’t tell you how the costs compare with the benefits, but the costs, as compared with other costs, really are extremely high. The Telegraph op-ed has a graph with how real costs have risen over time (other media reporting conflates cost overruns with inflation), which pegs current costs, with the leg to Manchester still in there, as ranging from about £85 billion to £112 billion in 2022 prices, for a full network of (I believe) 530 km. In PPP terms, this is $230-310 million/km, which is typical of subways in low-to-medium-cost countries (and somewhat less than half as much as a London Undeground extension). The total cost in 2022 terms of all high-speed lines opened to date in France and Germany combined is about the same as the low end of the range for High Speed 2.
I bring this up not to complain about high costs – I’ve done this in Britain many times – but to point out that costs matter. The ability of a country or city to build useful infrastructure really does depend on cost, and allowing costs to explode in order to buy off specific constituencies, out of poor engineering, or out of indifference to good project delivery practices means less stuff can be built.
Britain, unfortunately, has done all three. High Speed 2 is full of scope creep designed to buy off groups – namely, there is a lot of gratuious tunneling in the London-Birmingham first phase, the one that isn’t being scrapped. The terrain is flat by French or German standards, but the people living in the rural areas northwest of London are wealthy and NIMBY and complained and so they got their tunnels, which at this point are so advanced in construction that it’s not possible to descope them.
Then there are questionable engineering decisions, like the truly massive urban stations. The line was planned with a massive addition to Euston Station, which has since been descoped (I blogged it when it was still uncertain, but it was later confirmed); the current plan seems to be to dump passengers at Old Oak Common, at an Elizabeth line station somewhat outside Central London. It’s possible to connect to Euston with some very good operational discipline, but that requires imitating some specific Shinkansen operations that aren’t used anywhere in Europe, because the surplus of tracks at the Parisian terminals is so great it’s not needed there, and nowhere else in Europe is there such high single-city ridership.
And then there is poor project delivery, and here, the Tories themselves are partly to blame. They love the privatization of the state to massive consultancies. As I keep saying about the history of London Underground construction costs, the history doesn’t prove in any way that it’s Margaret Thatcher’s fault, but it sure is consistent with that hypothesis – costs were rising even before she came to power, but the real explosion happened between the 1970s (with the opening of the Jubilee line at 2022 PPP $172 million/km) and the 1990s (with the opening of the Jubilee line extension at $570 million/km).
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www.bbc.co.uk
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