>>Level 4 vehicles can operate in self-driving mode. But until legislation and infrastructure evolves, they can only do so within a limited area (usually an urban environment where top speeds reach an average of 30mph). This is known as geofencing. As such, most Level 4 vehicles in existence are geared toward ridesharing. For example:
- NAVYA, a French company, is already building and selling Level 4 shuttles and cabs in the U.S. that run fully on electric power and can reach a top speed of 55 mph.
- Alphabet's Waymo recently unveiled a Level 4 self-driving taxi service in Arizona, where they had been testing driverless cars―without a safety driver in the seat―for more than a year and over 10 million miles.<<
My understanding is that the Waymo vehicles are quite constrained as to location and speed but I may be out of date.
Personally I would not consider FSD as being other than a control-less car (as a robotaxi) able to drive at normal speeds over any route that a human would be able to. I think several companies are near that, but that the last 1% is going to be insurmountable. That's not to say that
our cars won't be able to navigate safely most of the time, just that we will have controls in front of us - which rather rules out using them as taxis.