Novus America wrote:Fartsniffage wrote:
We've been running 125s on general trackways since the early 70's. We even manage that speed on twisty sections of track using Pendolino trains. The Kent-London Eurostar route runs at 140. Bumping to 150 wouldn't really be a big enough gain to bother with the expense.
And of course the rolling stock isn't built or even fully designed yet. Government program, remember? But it shouldn't be a huge problem, Japanese trains can already run at that speed, they're just limited due to the specially built tracks not being up to those speeds.
Well bumping it up to 150 then 160, then 180 probably would not cost that much. Especially as the 140s are not north of London.
I mean the balls to the walk all or nothing approach might get the biggest improvements on paper but I am somewhat dubious (well honestly of course completely so) it will get done properly, on time, without outrageous cost.
And since the trains are not built yet, and neither are the tracks, sure in theory they might get that high in places (the track still has some curves it appears) but in actuality? I will believe it if I see it. I would not be surprised if the tracks cannot actually do as well as planned.
And right now the trains are just vapor ware. Who will build them? The Japanese I guess? Where will they be built?
I still think maybe the more gradual approach would be safer and possibly cheaper, even if not as fast (on paper at least).
But eh, I guess too late now. I guess we will just have to see how it turns out.
I like the idea, but I doubt you can blame me for doubting your government’s ability to execute it.
I edited that 140. It's actually 186. The train can go faster and does in Europe but is limited on the UK bit of track. It's the Eurostar line into London from Kent. That line was HS1.
And 140 is possible on all our lines, it's a safety limit to 125. They don't trust our somewhat older signals system.
Another thing you're forgetting here is the matter of national prestige. The Japanese have been regarded as the kings of high speed rail for decades and I think our government is keen on taking the crown. The rolling stock is out to international tender but they must be built in the UK to get the contract.
Something will happen with it all, Britain might not be its former self but never bet against us when it comes to engineering. It'll be shoddy government oversight that fucks things up.