"Most automakers are competing to introduce their own driverless cars to the public, and are doing so piecemeal, system by system. The components of the upcoming driverless car are being introduced into current models as ever more elaborate mechanisms to aid the driver, such as self-parking features and automated collision avoidance systems," says Issi Romen in Meeting of the Minds. How will driverless cars affect our cities? Two ways, according to Romen: First, cities will greatly expand, again. Second, buildings and parking will be uncoupled, freeing up valuable land.