Autonomous private busses, with routes auto-calculated based on the start and end point that passengers enter via smartphone, will take cars off the road.
Cars off the road will speed up those busses, making them more attractive.
Operating on the basis that one scooter rider is one less car driver, there is an immediate benefit. Scooters have an even smaller footprint than a bicycle.
I'm not sure why we would accept that assumption. Isn't it just as likely that one scooter rider is one less bus rider, train passenger or walker? In those cases, overall road congestion increases.
Autonomous private busses, with routes auto-calculated based on the start and end point that passengers enter via smartphone, will take cars off the road.
Cars off the road will speed up those busses, making them more attractive.
Etc.