Accident reconstruction refers to the physical activity of inferring the accident process according to the traces left by the accident participants, the final posi-tion, the participation in the car damage and the injury of the participants, and then the testimony of the participants and eyewitnesses. It not only provides a basis for the identification of the faults of both parties, but also provides data support for accident prevention and vehicle active safety analysis and research. This paper studies the basic theory of accident reconstruction, and uses PC-Crash software to reconstruct 30 accidents, and obtain parameters such as vehicle, human motion parameters and relative position before, during and after collision.
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