Not long ago, one of our road crews was working behind giant orange signs, flashing lights, and a traffic regulator holding a stop sign. A car was already stopped in front of him. Then another vehicle came up fast and showed no signs of stopping. Our traffic regulator radioed a warning and ran for his life. The speeding vehicle rear-ended the stopped car, launched over it, landed on its top, and came to rest on its side within feet of him. Then he climbed up on that vehicle