불확실한 교통사고 재구성 해석에서 충돌속도 추정을 위한 정면충돌변형 활용

Abstract

Traffic accidents generally occur from a combination of human factors, such as the driver, and elements relating to traffic safety installations, such as the road. In order to analyze the fundamental problems that cause traffic accidents, analyses of the tendency of macroscopic accident occurrences as well as investigations on and scientific reconstructions of various forms of major individual accidents are necessary. The more accurate the estimated collision speed is, the more credible the reconstruction results will be. The manner of calculating the collision speed in a car crash by using data on the degree of deformation of the vehicle has been proposed before. In connection with interpreting the reconstruction of a traffic accident, the subject study proposes a new model on calculating the collision speed between passenger cars and multi-purpose vehicles(MPVs) by using the deformation from a front-side impact. The reasons in proposing a new model can be attributed to the fact that the existing models were founded on collision tests between vehicles manufactured before the 1970’s, and the samples that were used were very limited, thus, degrading the reliability of the model in current times. The model proposed in the subject study resolves the problems by taking into consideration the various types of cars and the properties of matter not reflected on the existing models. The credibility of the newly proposed model and the previous model was assessed by comparing the figures computed by the models and the collision DB of NHTSA(National Highway Traffic Safety Administration). According to the results, the new model proved to be significantly more accurate and reliable than the existing models.