Abstract
In current Japan, almost freighting is carried by truckload transportation. So, trucks are indispensable vehicles for logistics. Therefore, it is important to construct occupants’ safety in trucks. By improving technologies for preventive safety, many type preventive safety devices are equipped on trucks. However, it is impossible to cover all round safety by preventive safety technologies. Therefore it is important to consider occupants’ crash safety. For constructing occupants’ crash safety, it is necessary to understand detailed occupants’ injury speciation in collision accident. From previous days, there are many researches or investigations reported for occupants’ injury in passenger vehicle collisions. However there are few reports for large class vehicle collisions as trucks or buses. In the present study, the author focuses attention on collisions between heavy duty trucks and investigates to clarify injury speciation of occupants in heavy duty trucks collided by frontal collision or rear end collision, by using traffic accident integrated data stored in ITARDA (Institute for Traffic Accident Research and Data Analysis). Detailed occupants’ injury speciation by body region is clarified from a view-point of statistical accident analysis..