We should be more ambitious about how we imagine our cities, towns and transport systems in 2040 or 2050. They could be built around pedestrians and cyclists, not cars. In my dream world, there would be no need to own a car, especially if it does nothing 23 hours a day. We could create networks of driverless, low-carbon Ubers that serve the city. When you do need a ride, press a button on an app, and a clean, autonomous vehicle will swing by to pick you up.
