[petra]

This is pretty close. Benedict evans did a more accurate calculation , and got ,for electric self driving cars, 14-19 cents/mile:

https://twitter.com/benedictevans/status/636684338352951297

One thing he forgot - what about shared transport - say sharing with 3 people could offer ride time relatively close to a car. That gets us to 4.5 cents/mile. That comes about to $50 a month/american-person(avg 13.5K miles/year) , less for a kid, surely less for people in dense cities(say $25) .

EDIT:and if you're willing to ride an on demand bus/minibus , maybe it could go to 1/2-1/3 of that , so maybe your monthly transport demands could be met by less than $10.

[mdorazio]

I did my own calculations last week and came to about 2x his numbers (https://www.linkedin.com/pulse/how-cheap-can-uber-self-drivi...). He makes a few faulty assumptions (ex. maintenance costs and depreciation are tied to miles, not years) and in my opinion underestimates costs significantly in areas like insurance, and over-estimates billable miles that will be driven per day. Still amazingly cheap, though, especially if carpooling and/or using public transit part of the time. For comparison, CalTrain runs between 17 and 25 cents per mile if you take it more than one zone.

[hugh4]

Sharing rides with strangers is precisely the kind of thing that I'd hope to avoid by replacing public transport with self-driving cars.

But anyway, yes, it does appear that the economics of the self-driving taxi beat the economics of the bus or the train, especially given that buses and trains generally operate at a large loss and still charge people, on average, a higher fare than what they'd pay for a self-driving taxi.

A self-driving bus that operates a route could be even cheaper, but why bother when you can hail a cab to take you straight to your destination without stops for just a few tens of cents more?

[petra]

I can imagine a self-driving taxi , for shared rides, that's designed for privacy , so you don't feel like riding with others, except for a bit of an extended trip.

I wonder why nobody have build such a car yet, but there's good likelihood it will happen in a huge self driving market.

[kps]

When all cars are self-driving, small single-person cars are a realistic option.