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this post was submitted on 17 Jul 2023
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Fuck Cars
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Electric cars don't solve a lot of the root problems of cars. They still require massive amounts of energy to move thousands of pounds of steel. They also still rely on sprawling roads and parking lots.
Absolutely. And the benefit trains have over cars is that you can reduce the amount of other stuff per person needed to get people moving.
For a local train of mine that seats 93 people with empty weight of 54 metric tons, that comes out to ~0.58 tons/person.
My sedan weighs in at about 1.5 metric tons empty, and since I'm the only one that uses it, my weight footprint is ~1.5 tons/person.
Forget about fuel economy too. Trains don't have traffic (most of the time) to deal with, meaning they can accelerate to coasting speeds and spend most of the ride at best-efficiency. Cars are subject to traffic conditions, meaning efficiency can be as-designed by the manufacturer, or it can be much, much worse on a per trip basis if you contribute to the daily rush hours on freeways.
There is also much less friction on rails compared to rubber on roadways. If demand increases the length of the train can be increased or more trains added. This helps prevent the cycle of needing more lanes (rail lines in this case).
Electric motors are between 95 and 98% efficient, while ICEs are in the 80's on a good day.
You are aware that electric trains also use electric motors, just like electric cars do, right? And you are aware that electric cars rely on an electric battery while electric trains rely primarily on overhead electric power lines, are you?
That means cars require one extra component and an extra conversation of energy which trains don't need. Every conversation of energy reduces efficiency of the final outcome. The more conversations, the less efficiency.
Trains use: power lines -> electric motor
Cars use: power lines -> electric battery -> electric motor
Furthermore, bigger machines can be built to be more efficient than smaller ones. So bigger motors can use (electric) fuel more efficiently than smaller motors.
I was responding to your assertion about EVs not being much better than ICEs.