THE STATES OF OHIO AND INDIANA'S DEPARTMENTS OF TRANSPORTATION ARE TESTING A SELF-DRIVING TRUCK CONCEPT ALONG I-70. HERE'S HOW IT WORKS. THERE ARE TWO TRUCKS, AND THE FIRST ONE IS DRIVEN TRADITIONALLY WITH SOMEONE BEHIND THE WHEEL THE WHOLE TIME. THE SECOND FOLLOWING TRUCK IS THE PARTIALLY AUTOMATED ONE. IT'S CONTROLLING ITS ENTIRE MOVEMENT, SPEED AND LANE CHANGES, BUT THERE'S STILL SOMEONE READY TO TAKE OVER AT A MOMENTS NOTICE. ODOT TELLS ME THEY BELIEVE THE COMPUTER HAS A FASTER REACTION TIME THAN A HUMAN, THEREFORE POTENTIALLY INCREASING SAFETY OUT ON THE ROADWAY.