Don't think of it as replacing what historically was walking outside and hailing a cab, think of it as setting up a carpool with office mates except you don't have to know them, and you don't have to work out all the details, it will be handled for you.
Mass transit works well in dense areas because the vehicles are large and only need to go short distances or go long distance over a specific route. When everyone has their own custom route, person A's route may make person B's route unacceptably longer. Also, sitting on a bus/train with 50 strangers is less of an odd social situation than sitting in a car with one stranger.
Once autonomous cars get to the point where they don't require any driver attention at all, I think it will make ownership even more appealing since you could customize the entire to match whatever you want to do while you're hauled around.
Everyone has their own door as well so there isn't as much jostling past and touching and being touched by strangers even in a full car.
The only time I've ever taken an Uber or Lyft and I not have my own door and/or I've had to scoot past people is in large party situation and those other people were my friends.
I've talked to women and they seem to prefer an Uber or Lyft over taking the train and/or the bus. Also, being dropped off at your destination rather than walking a few blocks from a metro stop to where you are going also makes a massive difference.
The benefits really outweigh the drawbacks. Especially if this is cheaper than owning one's own car. In theory, a private automated car service (calling a car and being the only rider) would still be cheaper than owning a private car and still have the same conveniences. It's just that eventually it will basically just be 4x cheaper to share a ride.
Mass transit remains the most viable method of transporting people over dense, multi-mile terrain.
The last mile and "normal" metros like Memphis, Baltimore, or Cleveland, where it is not dense enough to justify a comprehensive subway/light rail system, are probably the best use cases for self-driving cars and universal car sharing systems.
People do it already to save money. Making it easier, and adding the ability to set up a standing appointment with the same people over multiple days would alleviate a lot of people's concerns, IMO.
> Lots of people still have relatively specific needs, e.g. requiring car seats of various sizes for their young children, needing to pick-up or drop-off kids at school, sports practice, etc.
Many families have two cars, purely because of the few times a day when both are needed at the same time. For example, I have a Honda Odyssey for family use, since I have three kids. I also have a cheap commuter that I lease, purely to get to and from work a few times a week, since I work from home a couple days. That's a car I could happily and easily remove from service with little impact, as long as I had a way to get to and from work.
> When everyone has their own custom route, person A's route may make person B's route unacceptably longer.
The idea is, with thousands of routes, you might find quite a few that overlap a significant percentage of the time. Compute what percentage each person is responsible for of the whole, subtract some portion of the route for the distance that's spent going to the other pickups/dropoffs that aren't on your path, and provide a a discount depending on how much you share. Use minivans and/or full-size vans if there are enough rides to maximize people, comfort and space. The carrier maximizes profit over people and vehicle wear over a ride, and the people minimize price.
> Once autonomous cars get to the point where they don't require any driver attention at all, I think it will make ownership even more appealing since you could customize the entire to match whatever you want to do while you're hauled around.
Sure, but that's a luxury use. People that drive luxury cars that cost a lot will undoubtedly do that. People that are trying to minimize cost so they can spend that money on essentials or even just other luxuries they value more will opt for the cheaper option. It's why people carpool now.
Why not just keep your partition up between you and the other passengers? Because no human driver needs visibility out all of the windows, you can split the car into private spaces. When no driver is needed, it opens up a lot of different configurations.
The self-driving vehicle needn't be a small car.