It would probably end up being far more about a min/dollars rate, since the time operating the vehicle and human (presently) driving it are both costs in time a

It would probably end up being far more about a min/dollars rate, since the time operating the vehicle and human (presently) driving it are both costs in time and not inherently in distance. Approximating some numbers... 60 miles / hour (2 gallons and lets call that 10 USD for ease of accounting) 5 USD mis overhead (and profit) 15 USD driver wage (while working) 30 dollars an hour is about 0.50 USD / Min. That's probably the absolute floor: I've not left much room in there for profit, insurance, vehicle costs... idle time of work units, travel to/from endpoints. I suspect that 1 dollar / min is a reasonable fee, if quite aggravating for cities like Seattle / Bellevue.