text: According to the article, it says that "Smarter roads are too expensive to be pratical". If there is a smarter car on the road, we will need to have smarter roads and that comes with a lot of work. Smart-road systems work suprisingly well, but they require massive upgrading to exsisting roads. For starters, the driverless car will need to have an excessive amount of sensors. That causes the car to need a lot of improving in order to function with exsisting roads.