One hazzard that I found while working for the garbage company was the one that is a hidden one.The guy driving the big truck with a dump box.When he has his box in the air 40 ft. and then pulls ahead it is very unstable ground and it will rock and could tip over and if you are in the area that that trailer can reach you wouldn't know till it came down on you.

 

It's something that you wouldn't think of or maybe he didn't have the boxup when you backed in.

 

The ground is very unstable under you and can collapse into a hollow.Holes can be dug and you might not see them when backing up.Other trucks in the area while you are outside of your vehicle and they don't see you.Trucks getting stuck and having to be pushed or towed there is a possibility of being crushed between you and the tow vehicle or run over while being pushed.The hazzards are endless in this type of environment.