Every other Friday, this second generation prototype of Red Rover—as the robot is named—goes for ... capable of driving itself in simulated traffic over a 60-mile course.

When the robot ... traffic. We changed lanes with confidence, maintained steady speeds on San Francisco's challenging hills.

cities around the world have used red light and speed cameras to help enforce traffic laws. Kinshasa, the capital of the Democratic Republic of Congo, is betting that giant robots could be more ...