Image transcript:
Calvin (from Calvin & Hobbes) sitting at a lemonade stand, smiling, with a sign that reads, “Trains and micromobility are inevitably the future of urban transportation, whether society wants it or not. CHANGE MY MIND.”
I’m going to make the argument against trains for everything, despite being a huge fanatic for trains.
Trains are the most efficient transport method per tonne-km over land, yes. However from certain operational standpoints trains can make less sense than existing solutions.
When distance between stops for heavy rail becomes too short, you lose quite a bit of efficiency. Trains themselves aren’t a one-size fits all solution as there are various types that each need their own form of investment (which is a lot $), when roads are compatible with both personal transport and large trucks with little investment by the transporter (govt pays for road maintenance).
Rail companies right now are chasing profits and neglecting operational improvements. In the US, hauling a long, LONG, old and slow train loaded with bulk aggregate, oil, grain, chemicals is more profitable than aiming for JIT capability that is more feasible with trucks. A complete change in societal incentives is necessary to bring back the usefulness of railway in all types of transport. Second, the North American way of railroad companies owning the tracks dissuades a lot of innovation and new firms from entering the market, unlike the “open road” where there are many competing OTR freight companies. None of the Big Six would like my idea of a nationally controlled rail/track system.
Electric motors are now capable of >90% regen, so the braking energy argument against short stops doesn’t work anymore (and the energy during motion strictly less than a rubber tired vehicle with a worse aspect ratio so long as the trip is no longer).
The amount of rail needed for short distance distribution networks could still be prohibitive in regions designed for road though. Even then one could still argue that the total infrastructure costs are lower by moving the destinations slightly given how much roads cost to maintain.
Well, streetcars could be an option for high density corridors but they will lose money in low density, low ridership areas.
Roads always lose money, so that’s still a win. Travel speed and coverage may be a limiting factor though.
Roads and cars lose money constantly.
The more people try to “innovate” transportation the closer it gets to going back to trains. Driverless cars, for efficiency have them communicate with eachother, to accelerate and brake at the same time, for example. That’s just less efficient and more expensive trains.
There’s a massive failure condition for your example - sure, autonomous cars behave like trains when they communicate with each other to sync acceleration and deceleration, but they can also separate themselves from the collective to drive you to the door of your home. In the train metaphor this would be like you sitting in your own train car, and the train car separating from the rest of it and driving you to your doorstep.
oh no, if only someone hadn’t centralized like, a point, say, a station, where people could conveniently access the train of cars…
they could call it a… hmm… TRAIN STATION?
Why cars? Why not buses, trams, trolleys or even bikes?
whoooosh
You reinvented switches.
I think you miss part of transportation system that says system. It’s more than one element.
![[meme] Trains -- not driverless cars -- are the future of transportation](https://lemmy.world/pictrs/image/f6468af5-8151-4b4c-b339-2fa0b0373c3a.webp){kind=link}