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Figure 8. Persons Injured in Combination Truck, Single-Unit Truck, and
Passenger Vehicle Crashes
per 100 Million Vehicle Miles Traveled, 1988-2005
Notes: Persons Injured includes all nonfatally injured persons in injury
and fatal crashes. A combination truck is defined as a truck tractor pulling
any number of trailers (including none) or a straight truck pulling at
least one trailer. A single-unit truck is defined as a medium or heavy
truck in which the engine, cab, drive train, and cargo area are all on
one chassis. A passenger vehicle is defined as a car or light truck (including
pickups, vans, and sport utility vehicles).
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