Automated cars in a controlled environment like a tunnel with no pedestrians or human drivers are going to be far safer than anything moving along on the surface.
Look up "tunnel fire". Then look up "Tesla fire". Then combine the two. Now add hundreds of other cars zooming around.
Busses, subways and taxis all help with congestion.
Taxis don't help with congestion. Taxis cause congestion (in small part). This can never fix congestion unless you fill the place with it, in which case you have other problems.
Why so opposed to combining them in new ways when technology offers up new solutions? You're literally throwing an entire concept out the window because you don't like who proposed it.
No, I am throwing it out of the window because there is zero value to it. Null. Or rather there is negative value. There is negative value in cities investing a bunch of money into a horrible idea like that.
Would you be saying busses are terrible if Elon starts making automated electric busses and running them in tunnels instead of cars? Because there is no reason you couldn't do that.
Yeah, he could do that. In fact he may even decide to make it even more efficient by stringing together a bunch of these busses so that more people can embark at once. And then he could do away the nasty lithium tunnel fire risk plus make the vehicles a lot lighter by moving the power supply from batteries on board to an external power source (which would also be better resource and cost wise). One idea for example would be to introduce a guidance system similar to what he unsuccessfully tried to implement at first, which would also provide the vehicle with power while making it even more safer in case the autopilot fails and slams into the walls. Yeah, that actually sounds like a pretty sweet idea.
Oh wait, that's literally a subway.
I would support him making a subway, if that is what you are asking.
Elon wants to sell boring machines and electric vehicles.
Elon doesn't make boring machines. Well, they are designing one, but it's not really ready for application yet. Its diameter is also suited for building the dumb Tesla tunnels so it's not particularly useful beyond that. I guess it might be good for storm drains. Maybe in the future TBC will start selling boring machines, but that is not the case yet. Musk's focus is the cars.
What saddens me is how opposed to new ideas people here seem to be.
Not new ideas, bad ideas. New ideas are good, if they are good ideas. Not every new idea is good. Besides, this isn't even a new idea, it's just taking existing things and combining them in ways that work against their strengths.