From The Towanda Daily Review:
"Bradford and Lycoming counties had the most crash-related fatalities in 2012 in Pennsylvania Department of Transportation (PennDOT) District 3-0. According to information released by PennDOT, Bradford and Lycoming counties each had 15 such fatalities each last year. In each county, 14 were on state roads and one was on a municipal road.
In addition, Bradford County had the most crash-related fatalities involving large trucks in 2012, with three, PennDOT noted. PennDOT Assistant Traffic Engineer Bill Houpt said there is no particular reason for the number of fatal crashes. When asked for comment by The Daily Review, he stated, "Each crash would need to be evaluated, based on the crash report and its own specific circumstances. Crashes (and fatalities) tend to be cyclical." For example, total crash-related fatalities in Bradford County in past years are as follows: 2009, 10; 2010, 20; and 2011, 10."
My immediate thought is that the high amount of large truck related fatalities is related to the gas industry and the huge increase in truck traffic in Bradford County and the surrounding counties of Tioga, Sullivan and Susquehana. Obviously, we don't know for sure without looking at each incident specifically. But it's a quite surprising that one of the most rural counties in the state has the highest vehicular related fatalities in the Commonwealth of Pennsylvania.