Robin Chase, co-founder of Zipcar, discusses why driverless cars could quickly scale to comprise 80 percent of all cars on the road within 5-6 years after the first driverless car hits the market. She also discusses how the "Ten Shared Mobility Principles" she is pioneering can help usher in a future where cities are sustainable, livable and just. This clip is excerpted from a video published on Real Vision on April 11, 2018.