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Joined 11 months ago
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Cake day: December 11th, 2023

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  • My understanding is that this will require new designing and consulting stages of phase 2. We have already spent about £2billion on Phase 2 which is likely not recoverable so you would need to respend at least a significant fraction of that on new design consultation and lawyers etc. So any cost savings you expect from different design requirements would need to be much greater than that (probably around 3-4% of total cost).

    Yes slower services allows more flexibility with alignments but it comes at a cost of larger fleet sizes and likely more warehousing requirements(unless you reduce the passenger capacity to correspond). Speed was looked at in the original plans and found that reducing the speed somewhat did not reduce overall costs that much but did reduce the outcomes quite a lot.

    The biggest problem is in the way costs have been amalgamated and communicated. HS2 had lumped in some really major project works that needed to happen anyway (notably rebuilding Euston that is currently not for for purpose for current passenger numbers) alongside at least two new stations to facilitate interconnections with the rest of the network. In other countries thought would come under separate budget lines and not look like one project.

    The other big cost factor for HS2 was simply to demand more from it. We required it to be incredibly good at avoiding as much ecological disruption as possible and that meant more expensive tunnelling. It would have been the UKs only climate resilient line in the country partly as a result. So as another commenter said if its cheaper (which I would stake money it won’t be significantly) it will be at the cost of much less care towards the environment and offering a much less future proof outcome. If we wish to meet climate obligations we need massive increases in rail usage and that only begins to be possible if you free up this scale of capacity from the rest of the line.

    The other thing to say is the cost is a bit if a fiction in itself. The cost is paid for by borrowing against future revenues of the service so to downgrade the service to save 1% of cost and you potentially downgrade the return even more which means you could actually cost the treasury more. This isn’t money that is available for anything else despite how its been reported.









  • zerakith@lemmy.mltoScience Memes@mander.xyzpringles
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    3 months ago

    I’m pretty sure it’s real. I met someone once who worked in materials research for food and they said that modelling was big there because the scope for experimentation is more limited. In materials for construction where they wanted to change a property they could play around with adding new additives and seeing what happens. For food though you can’t add anything beyond a limited set of chemicals that already have approval from the various agencies* and therefore they look at trying to fine tune in other ways.

    So for chocolate, for example, they control lots of material properties by very careful control of temperature and pressure as it solidifies. This is why if chocolate melts and resolidifies you see the white bits of milk that don’t remain within the materia.

    *Okay you can add a new chemical but that means a time frame of over a decade to then get approval. I think the number of chemicals that’s happened to is very very small and that’s partly because the innovation framework of capitalism is very short term.







  • This is a consistent misunderstanding problem I wish people understood.

    Manufacturing things creates emissions. It costs energy and materials. Something could have absolutely no emissions in usage and still be problematic when done on growing scales because the manufacture costs energy emissions and resources. Hard drives wear out and die and need replacing. Researchers know how to account for this its a life cycle assessment calculation they aren’t perfect but this is robust work.

    IT is up to 4% of global emissions and the sector is growing. People consistently act as if there is no footprint to digital media and there is. https://www.sciencedirect.com/science/article/pii/S2666389921001884

    Yes the headline is a little silly but we actually do need think strategically about the sector and that starts by actually realising it has an impact and asking ourselves what are the priorities that we went to save whilst we decarbonise the industry that supports it.

    There’s no wiggle room left - no sector or set of behaviours that can afford to be given slack. We are in the biggest race of our life’s and the stake are incomprehensibly huge.