Slef Driving Car? R we Ready?

So upon reading this article in Slashdot.com I found that Google is working on a self driving car. After engineering their prototype to maneuver through a race track  at high speed, the question remains if the car can see regular human occurrences. But spokesperson  shares that  "The car can now identify several common roadside objects and correlate them with certain actions. That means an autonomous car can navigate around a construction zone and stop at railroad crossings. Where humans see train tracks, the car sees a red fence, telling it to stop unless it can make it all the way across safely". Now that Google partners with IBM this daunting tasks remains for the future of automobiles.