seat belts

MSHA recently issued two fatality investigation reports for incidents at quarries involving haulage trucks. Both incidents, one in Missouri and the other in Pennsylvania, occurred in September 2013. The reports caught my attention in particular because both include this statement: “Additionally, he was not wearing a seat belt and was ejected from the haul truck which contributed to the severity of his injuries.” What do we know, or not know, about why some workers fail to wear their seatbelts? First, here are a few details about the fatalities: One involved a 1980 Caterpillar 773B haul truck…