Assuming USD 65K for a Tesla 3, that is 1,184,615 cars. Not quite enough, but the prices of self driving cars is going to go down, and the cost of the HSR is only going to go up.
Of course, you could just build a restricted access freeway, instrument the heck out of it to help the self driving cars, and put the self driving cars on it as a kind of track...
Edit: It is 1275 km from SF to LA om I-5. If we put these cars, evenly spaced on that road, both ways, they are about 2.2 m apart from back bumper to back bumper.
Of course, you could just build a restricted access freeway, instrument the heck out of it to help the self driving cars, and put the self driving cars on it as a kind of track...
Edit: It is 1275 km from SF to LA om I-5. If we put these cars, evenly spaced on that road, both ways, they are about 2.2 m apart from back bumper to back bumper.