DARPA's Tough New Robot Road Test - Popular Mechanics

"The rules of the DARPA Grand Challenge have changed. This November, 89 unmanned ground vehicles (UGVs) will be unleashed on a peaceful mock city inhabited by mannequins and drone traffic. Unlike the 2005 contest's desert racers, the driverless cars will now have to stay under the speed limit and obey traffic signals while merging, passing and parking. "