> I bet if you did a study and ran the numbers, it would be cheaper to put down rail on existing roads and make them rail-car only, automate those and subsidize rail cars.
Lane miles in the US are in the many millions. Each mile of track costs a million+ dollars. You're talking many trillions of dollars to railify every road in the country.
So no, there's basically no way that's cheaper than figuring out self-driving.
It is so strange that people don't see what is happening at Tesla. They are driving billions of miles under AI control.
It is totally fine to dislike Musk or to think that autopilot is unsafe today, but how can you look at billions of miles and say that it isn't going to work within the next few years.
There is a long long tail of edge cases that kill people.
When drivers go a few trillion miles per year in the US, any anomaly in your driving software is going to be measured in deaths per hour. There is a built-in human sympathy for accidents caused by people which will not be at all present with accidents caused by machines. You can't sure a maker for wrongful death by a faulty human, you can easily sue a car company.
It will just take one cute kid getting killed by an errant robot car to end the dream completely. Machines don't make human mistakes, they make mistakes that are alien and frightening, things you couldn't ever a person imagine doing.
The public will get scared and automatic driving will be banned.
For Tesla and everyone else doing unattended driving, it isn't a matter of covering the last few bits left, it's a matter of increasing precision by several factors of ten, and ultimately, I'm guessing robot cars won't be a reality until their intelligence starts to reach the point where people are asking questions about sentience.
Lane miles in the US are in the many millions. Each mile of track costs a million+ dollars. You're talking many trillions of dollars to railify every road in the country.
So no, there's basically no way that's cheaper than figuring out self-driving.