Driverless isn't about driverless cars per say. It's about driverless vehicles and a future where large fleet based transportation companies use various driverless vehicle formats to optimize for efficiency, speed, and comfort. A bunch of driverless SUVs might not alleviate consumption much (although they could if they were all full of people), but a fleet of fully enclosed driverless motorcycles could. Once the technology matures I could imagine our subway infrastructure being repurposed to serve as channels for vehicles like this.
