The road traffic mixes in the same flow—light cars and heavy trucks: well then a large part of severe traffic accidents concerns trucks impacting light vehicles.
Actually, if this type of accident does not occur frequently (4.5 percent of all accidents), it is very serious and 10 percent of traffic deaths are due to it. Using the sample of our bidisciplinary accident investigation, this study, concerning 53 cases of actual accidents, tries to precise the typology of truck-to-car accidents and the influence of the type of impact on car occupants lesions. Then it determines the more representative impacts conditions.