Raj Rajkumar, co-director of the GM Carnegie Mellon Autonomous Driving Collaborative Research Lab in Pittsburgh has said that that they have decided to stick with the speed limit. Yet when you go outside and drive on the highway maintaining that speed limit, you’ll immediately notice everyone zapping past you, he continued to add. Just last year, Rajkumar performed a drive test with members of the Congress in a driverless Cadillac SRX SUV. The self-driving vehicle performed incredibly well and it didn’t commit any infractions. However, when they reached the I-395 South the car had to merge into a lane. That’s when the huge problem surfaced. The vehicle had to swing across three lanes – that’s about 150 yards. The car used its cameras and laser sensors to detect incoming traffic in a 360-degree view, but it didn’t know what to make of the other drivers. Would they make room or will they zap straight into it? That’s when the human driver had to take control of the vehicle and complete the merger.