With the kind of infrastructure required for that, I can't help but think it would just be a lousy version of an electric railway. At least for long hauls with high throughput.
How would it be lousy? The cars can now go anywhere and dynamically route instead of being stuck on rails and the infrastructure costs are orders of magnitude less.
At some point you start wondering about improving intermodal transportation. Using rail for longer distances with trucks handling the last 50-100 miles.
