Figure 8. Persons Injured in Combination Truck, Single-Unit Truck, and Passenger Vehicle Crashes
per 100 Million Vehicle Miles Traveled, 1988-2005

Bar graph: Persons injured in combination truck crashes per 100 million vehicle miles traveled, persons injured in single-unit truck crashes per 100 million vehicle miles traveled, and persons injured in passenger vehicle crashes per 100 million vehicle miles traveled by year, 1988-2005. Data from Table 15 (combination trucks), Table 17 (single-unit trucks), and Table 6 (passenger vehicles).

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).