This is why Google and others have been pressing ahead for a fully autonomous
vehicle, though it is likely such a vehicle will not be street-ready for at least five years, and probably more. The navigation and control technology has yet to be perfected (today’s driverless cars tooling around the roads of California and other future-minded states still are unable to perform well in inclement weather, such as rain, snow, and sleet, and nearly every inch of the roads used for testing have been mapped.)