If the bus is full, I'm sure you're correct. I think there will always be place for mass transit along popular routes. In the UK there are a lot of buses that

If the bus is full, I'm sure you're correct. I think there will always be place for mass transit along popular routes. In the UK there are a lot of buses that drive around with only a handful of passengers. It's a subsidised service that's important to lots of people, but ultimately very inefficient. I'd imagine at least 60% of bus movements (not passenger miles) could be replaced with self-driving cars.