Road infrastructure is crazy expensive and even if you are willing to rebuild it for the autonomous cars instead of building a mass transit, you will have either segregated roads for autonomous cars(which is essentially individualistic mass transit) or you will have mixed car infrastructure.
The US has a road network of 7 million km and apparently it costs about 1 million to 45 million[0] to build 1 km of road, depending on the nature of the infrastructure. Obviously the higher end is for large roads built in city centres but even at the lower end of the cost spectrum its crazy expensive.
IMHO doesn't make sense to rebuild the infrastructure for autonomous cars. If you re going to rebuild the infrastructure you can be better of to built continent wide mass transit. At least you won't need parking lots.
The US has a road network of 7 million km and apparently it costs about 1 million to 45 million[0] to build 1 km of road, depending on the nature of the infrastructure. Obviously the higher end is for large roads built in city centres but even at the lower end of the cost spectrum its crazy expensive.
IMHO doesn't make sense to rebuild the infrastructure for autonomous cars. If you re going to rebuild the infrastructure you can be better of to built continent wide mass transit. At least you won't need parking lots.
[0] https://compassinternational.net/order-magnitude-road-highwa...