the imperial system is convoluted old anachronism of empire and it's high time we used something infinitely more logical. Science and engineering (the disciplines that do more measuring than most) use SI the world over. Other than some mis-placed affection for an utterly hopeless system of measurement (perhaps a bit like the tatty, leaky shoes that you like because they're well worn in and comfortable) I see absolutely no good reason for keeping imperial measurements. And before you throw any arguments about 'we should keep them because the US uses them' at me, I'll remind you that the US and UK▸ measuring systems are fraught with differences between then!
I'd agree with that statement, minus the bit I've put in bold italics. No matter how hopeless a system of measurement it is, when something takes a long time the expression used is '
it takes ages, and similarly if something's a long way away '
that's miles away. '
That's kilometres away' just doesn't have the same ring to it, and despite it being a bit convoluted it seems to invoke a sense of national pride, or something, that we have our own system. It's not logical, but while going fully metric would be a good idea getting rid of imperial would be a sad at the same time.
And you've still missed the point about speed- of course there isn't any signficant London to Birmingham air travel, but trains will run to the north, using HS2▸ for the first leg, from day 1. This provides time savings that provide modal shift benefits on longer journeys from day 1, and obviously will greatly increase with the full Y network. Building a new 140 mph line would only reduce construction costs by around 10%, but offers greatly reduced modal shift benefits, and by attracting fewer passengers makes the business case worse.
And your missing my point (or more likely I didn't make it at all clear), provided the figures I've seen are correct I cannot accept that running services between London and Birmingham much faster than 125/140mph would be justifiable on a purely enviromental basis. Taking other things into account limiting the max speed of the Birmingham trains sounds silly, but to prevent faster trains being enviromentally unjustifiable they have to continue beyond Birmingham.
As for capacity with a stop at Birmingham, you say there would be empty seats north of Birmingham. What about the passengers who would then be able to use the new line rather than the classic ones between Birmingham and points north? They'll take some of the spare seats and that might help release capacity on more of the classic lines than HS2 as planned would.
a 'through Birmingham' route is totally impractical
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They'd need a piece of desolate waste land on the right alignment, and comparable in scale to the Stratford railway lands before they built the international station box there. It just isn't possible...
Paul
I have looked on Google Earth. The site selected by the government for HS2's Birmingham station is an incredible find, a large open space right next to the existing Moor and New Stret stations. It wouldn't be quite so easy, but I can't see why the station couldn't be on the same site with the same southern approach if it was a through station. The platform lines would probablly need to be lowered a bit and put on a slight slope leading into a tunnel under the other half of the city to emerge near the M5/M6 junction. The tunnel would be very expensive yes, but not longer than the London tunnel from Euston to Old Oak Common. From there, a mixture of running above and alongside the M6 would be one option, or head north-east to finish phase 1 at it's planned Rugeley Trent Valley
WCML▸ junction (the currently planned route there from the M42 would not be needed either way). If you follow the M6 north, the junction with the classic lines would be at Norton Bridge instead.
Yes, it would be more expensive, but impractical I think it is not. Therefore, I think it is worth thinking about to see if that extra cost would be justified to provide, as I see it, a more useful railway.
I used the term "weaselly" as the report wording that you quoted might give the impression that HS2 was
the best economic benefit on offer. I think we're agreed that it is not, and that there is a risk of bigger benefits being lost due to a funding shortfall.
That leaves the point about a solution to WCML capacity being needed. I don't think I can adequately cover this in a short post as there are so many issues revolving about this point, many of which have already been debated in the context of motorways and airport expansion. Without having a prejudice on which issues could be the most significant, they include:
- Whether accommodating the forecast growth is the best policy given the economic, environmental and energy context
- Should growth be encouraged elsewhere where it can be accommodated at lower unit cost?
- Unintended consequences of altering the journey-time map of Britain, such as land use patterns and re-routing of journeys.
- Integration of HSR with other transport.
- How headline time savings with HSR compare with actual door-door time savings.
It is a great shame that consideration of HSR has descended to a bad-tempered rhetoric from both sides.
Interesting post, depending on aviation policy (HS2 probablly needs to be supported by a landing or take-off tax, otherwise the space freed up at airports by lost demand for domestic flights may be used for more longer-haul flights) I think greater enviromental benifits at least could be had spending the money on existing railways, particularly electrification. I pick up in particular your first bullet point, should we accomodate the growth at all or try to stop it? More to the point, can we stop it quickly enough without an increase in road congestion or domestic flights? If we can't, is there a cheaper short-term capacity solution (buses perhaps?) which can be used until we can get the demand under control?