I had a lot of places where hard hats, safety glasses and real shoes/boots were necessary but not many where I was afraid of being hit by a car or a piece of heavy machinery. With machines, I always understood, I was responsible for my own safety. The operator usually doesn't see the guy he hit and probably wouldn't if you had a flashing beacon on your hard hat. They are watching the bucket or the load they are hoisting and you need to give them room. I always assume they are trying to hit me and maintain that much distance. Never walk under ANYTHING. That hard hat only tells them where to dig for your body.
