SleeperMission
Member
Does it? And why?
Think about the costs of maintaining the infrastructure. As a rule of thumb one can expect rail to have a life of some 20 years before it needs replacing. On the pair of fast line tracks (Down and Up) between Kings Cross and Edinburgh there are roughly 1,500 miles of rail. This means that some 75 miles needs to be replaced every year — that's over 7,000 tonnes.
Sleepers, fittings and ballast also need cleaning or replacing and all 400 miles of route has to be maintained to millimetre accuracy.
As 'carbon footprint' has replaced 'pounds sterling' as the unit of comparison, how much carbon does all that take?
This is the trap into which railway enthusiasts always fall. Not everybody lives or works close to a central railway station, in fact most people don't.
In answer to your initial question: physics. The energy required to maintain lift is far greater than required for propulsion along rails, is that correct?
That rails need changing every 2 decades doesn’t offset this I imagine. Planes require more maintenance than trains as well, so I would be surprised if the underlying reality changes that trains have far less carbon footprint.
== Doublepost prevention - post automatically merged: ==
Just a matter of time before flying is tracked then. It is unfair that some may fly 10 times a year and others just once. Credits to fly might be a thing in the future?The government already knows exactly which plane you've ever crossed the border on, which is nearly all of them for all of us. The carriers and data brokers could also do this.
But Stevenson came before the Wright brothers, so I'm not sure what you mean here.
l should have wrote innovation for long distance train travel. Until recently air travel has held all the aces. Few other than some nation states invest into trains. It wasn’t like that initially when trains were a new thing. Private capital and excitement around trains was huge and created barons and industry titans. But for recently billionaires have been made from air travel and not rails.
The investment and innovation from companies like RR and airbus is not even remotely comparable to contemporary train research and innovation, I would guess._
Run an advertising campaign pointing out how many sleepers leave from Paris/Brussels, and promise an overnight hotel and first class ticket in the day if the Eurostar fails to meet the sleeper. In the fine print point out the St P departure times.
Lost me here.
== Doublepost prevention - post automatically merged: ==
Hydrogen by itself won't go anywhere for most aeroplane operations ( specifically aeroplane rather than aircraft, some nut might make airships viable again ). What's happening right now - if rather slowly - is sustainable fuels for aircraft, which have the side-effect of much reducing contrails by being less ( or even not ) sooty which alone eliminates something like 50% of global warming effects from aircraft in one go. You can mix SAF in with fossil kerosene in varying amounts ( given it's synthetic kerosene anyway ) so it's a solution available now that can ramp up. As with all sustainable fuels, CO2 emissions is a non-issue given it was captured from the atmosphere at the start.
One of the sources for the process is hydrogen ( optionally ) - unfortunately producing green hydrogen by electrolysis uses an absolutely absurd amount of electricity.
Sleeper or not makes no difference to me, not living in reasonable range of London - if I want a train abroad it's just accepted it's going to be a lengthy journey. There's never going to be any demand for one from my area ( tbh anyone here going somewhere that distance is just going to fly no matter what ).
E-fuels are probably going to play a part. Possibly to allow combustion engine car enthusiasts to keep using screaming engines.
But for use in planes it is a long way off. Sleepers could run tomorrow if there was political backing.
Last edited: