The city should just start to bill big fleet operators for passenger-less miles. That would be uber and lyft for all miles driven by their operatives without a

The city should just start to bill big fleet operators for passenger-less miles. That would be uber and lyft for all miles driven by their operatives without a passenger aboard, and by waymo and cruise for miles driven without a customer. By keeping it to the biggest operators, the administrative burden is small (these companies all GPS track their cars already). The fee could probably be pretty small (say 10 cents a mile) to disuade the practice, while not outlawing it entirely.