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A generally accepted definition of a “large truck” is a commercial vehicle with a GVWR (Gross Vehicle Weight Rating) of 10,001 pounds or higher. As a result, anyone who studies “large trucks” is looking at this broad spectrum of vehicles and the people who drive them.
A study released last month by the American Transportation Research Institute (ATRI) examined a decade of information on truck crashes and broke them down into two categories: Medium Duty (up to 26,000 pounds) and Heavy Duty (above 26,000 pounds).

During that time period the crash rate for Heavy Duty vehicles dropped 24.6% while the rate for Medium Duty vehicles rose 38.3%. Quite a dissimilar result. Anyone familiar with the industry knows that those two groups also have quite dissimilar equipment, operating characteristics and even regulatory coverage.
Perhaps safety would be better served if there was more than one “large truck” definition. In that scenario each group’s record would stand on its own merits and point the way to improvements that were targeted at problem areas rather than widely aimed and not likely to produce the intended significant results.
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