A Study on the Effect of Delta-V Based on Vehicle Damages and Injuries Subjected by Rear-End Collisions

후미추돌사고의 유효충돌속도가 차량손상 및 승차자 상해에 미치는 영향에 관한 연구

  • Kang, Sung-Mo (Graduate School of Safety Engineering, Dongguk University) ;
  • Ahn, Byung-Joon (Department of Safety Engineering, Dongguk University)
  • 강성모 (동국대학교 대학원 안전공학과) ;
  • 안병준 (동국대학교 안전환경시스템공학과)
  • Published : 2008.04.30

Abstract

In a case of an automobile collision, vehicle damage and injury of the driver and the passenger occur. The scale of the collision which is effected by the extent of vehicle damage and the injury of the passenger, depends on the delta-V. Based on the photograph interpretation o the actual case of accidents in the Seoul and the Incheon area, this study measured the depth of crush and calculated the delta-V. Through verifying the correlation of the depth of crush and the change of velocity, relative equation was evaluated and compared with the prior study results to prove that they are almost identical. Thus, the depth of crush can be used as an index of the degree of impact, which can be utilized as the change of velocity to evaluate the level of injury done to the passengers. However, the period of hospitalization and diagnostics claimed by the injured proves to have no correlation with the delta-V and the extent of vehicle damage, this is due to the non-objective way of diagnosis and the anamnesis of the injured. This study established the absolute limit harmlessness and the choosing limit harmlessness, allowing the appraisal for Yes or No of the injury or the harmlessness based on the prior studies. Moreover, utilizing the relative equation formed between the depth of crush and the delta-V, each case of collision was compared and evaluated in comparison to the limit harmlessness to prove that the 90.4% of the so-called 'claiming-to-be-injured' were exaggerating or fabricating.

Keywords

rear-end collisions;delta-V;change of velocity;extent of vehicle damages;severity of injuries;barrier equivalent velocity;impact acceleration;biomechanical limit harmlessness

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