If driverless cars eliminated the need for public transport (in the contemporary sense) you could open up rail corridors to create highways for cyclists, jogger

If driverless cars eliminated the need for public transport (in the contemporary sense) you could open up rail corridors to create highways for cyclists, joggers, and walkers - it would open up alternatives to motorised travel. Or you could turn the theory on its head - use the rail corridors as motorised transport arteries and open up the roads to the bipeds. (From Sydney where the rail network is extensive - I'd imagine places with less ubiquitous rail wouldn't benefit as much)