Study On The Traffic Accident Reconstruction And Reestablishing The Mode Of Injury

Objective: This report aimed at using computer simulation to reconstruct the accident impact courses and the mode of traffic injury on the body as possible as veracious in traffic accident identification. As a result, these progresses would enhance the quality of traffic accident analysis and provide important evidence, which would be revealed for court.Methods: By collecting 200 traffic accidents causing death in 9 districts in shanghai from 2003 to 2007 and processing the information of traffic accident scenes, we could know the relationship between parameters which were used to accident reconstructions. Under the instruction of experts, we rebuilt the process of 40 accidents by using multi-body dynamics, finite element and trajectories optimization methods and with the help of crash software such as MADYMO, PC-CRASH and LS-DYNA. Furthermore through the dummy model, we rebuilt the mode of injury and analysis of the dynamic response under impact.Results: Based on the processing the information of traffic accident scenes, we established the system of the parameters for computer simulation and set up the model of dummy, vehicle, bicycle and road. Meanwhile, the impact reconstruction of vehicle to bicyclist, vehicle to motorcyclist, vehicle to pedestrian, vehicle to vehicle and the mode of injury on the body were triumphantly revealed.Conclusions: Based on the parameters of traffic accident scenes, the results of computer simulation could be close to the reality and the accident reconstruction would be visualized. Also, it would enhance the quality of traffic accident identification and play an important role in judging traffic accident cases for police and courts.