Waiting time for a cab where I live takes less than a minute on average (in fact, I'd say the median is around 20s). In a driverless world, it's possible that t

Waiting time for a cab where I live takes less than a minute on average (in fact, I'd say the median is around 20s). In a driverless world, it's possible that the cab market where you live will be a lot more efficient/cheaper and the assumption that waiting for a cab takes 10-30 min won't hold anymore.