Technologist
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- Joined
- 29 May 2018
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- 467
Building new rail infrastructure is very expensive and especially so if it is designed for high speed trains. The UK is in a parlous economic situation with massive debt, whose servicing alone consumes vast portions of tax revenue.
Therefore, new rail lines should only be built if they can be demonstrated to have economic benefits, not just for political reasons.
Mods note - split from this thread
Restarting HS2a
Wonder how quickly the 3 Mayors can persuade Louise Haigh to restart HS2a to get it to Crewe ( using thier 3rd party / government funding) and reapply the safeguarding for HS2b
Latter sentence is to a degree why the former is true.
The fact that we expect every line to be an economic net positive means that we are stuck doing similar things to what we have already done and thus have the economic data. Most of that data is also for rail that isn't anywhere near self funding and need to be justified on the basis of social or broader economic benefits.
This is not how the world's most successful companies are created or run, they generally don't make money for a long time (or at least don't make money on the early stages of their long term innovations) and they base their economics on general favourable trends (Moore's law, generally applied) which mean that as they scale they eventually become profitable and eventually incredibly profitable.
So Uber, Google, Facebook, Amazon etc all burnt money for years but they didn't do it wilfully. Those unprofitable ventures were all about building knowledge, capability and market position so that when the ventures scaled up they would be profitable.
This is why we need a top level grand plan integrated with the likely impacts of other technologies (this must not be done by railway people), I'd suggest that the long term vision should be that the railway becomes a walk up national high speed metro deeply integrated with last mile autonomous vehicles and where autonomous busses on dedicated routes duplicate or infill rail. This would be funded directly by capturing the economic benefit for the rail company itself which would then be used to keep developing the system and developing the technologies and business model, hence treasury and ministers are superfluous to the decision making. They instead become enablers on the planning, integration and economic benefits side
This would be under pinned by the fact that autonomous vehicles are making systems vastly more capable than the most advanced railway signalling commodity consumer electronics, batteries enable high performance trains to operate pretty much everywhere and modular and robotic construction can make building things surprisingly cheap to build.
The thinking then becomes where is the cheapest place to try all these things out rather than which line has the best cost to benefit ratios using my current paradigms. Find a relatively straight low usage line, chuck freight off it, partially electrify the easy bits of it and then run 300kph, tilting, lightweight BEMUs on it that use Starlink/ Amazon Leo/5G/GPS/5G/computer vision signalling systems to run the trains.
In other news the first coast to coast autonomous vehicle trip has taken place in the US. Yes you can apply all the caveats about US roads being easy and it being a one off and not verified by a third party but all those issues are going to be solved in much shorter time periods than rail can currently construct in.
2,700 miles: Tesla's first coast-to-coast autonomous drive completed
David Moss reported completing a journey across the United States using Tesla's Full Self-Driving (FSD).
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