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> (5) Mass transit (can be public/private) transportation: Electric trains

This depends quite a lot on ridership. E.g. a typical MAX train in Portland, filled at perhaps 10% capacity aside from a few narrow time periods in the morning and evening, loses out on efficiency to a Honda Civic with four people. Trains are heavy even when they are empty.



But most cars are not filled with 4 people: quite often it's only one or two

And many don't drive a Honda civic: they are driving the biggest, heaviest car they can get their hands on




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