In my view, accidents aren't the main issue, it's more the disruption caused if an AV, with no human driver, encounters the 'freezing robot problem' (I.e. When traffic lights not working, with policeman directing traffic) & gets stuck in a busy city centre, blocking traffic all around.
I'm not aware of any fallback remote takeover mechanism that can be used to recover AV's on this situation.
EDIT: I'm convinced, that until we majorly overhaul our road infrastructure to be more 'robot friendly', it's hard to see _fully_ autonomous AV's work in major cities I.e. electronic beacons on lane dividers, electronic signals on traffic lights, vastly stronger GPS network or replacement thereof, six nines level mobile network coverage at high bandwidth.
I'm not aware of any fallback remote takeover mechanism that can be used to recover AV's on this situation.
EDIT: I'm convinced, that until we majorly overhaul our road infrastructure to be more 'robot friendly', it's hard to see _fully_ autonomous AV's work in major cities I.e. electronic beacons on lane dividers, electronic signals on traffic lights, vastly stronger GPS network or replacement thereof, six nines level mobile network coverage at high bandwidth.