차량-보행자 충돌사고 재구성 해석: 차량 속도 계산과 불확실성Reconstruction Analysis of Vehicle-pedestrian Collision Accidents: Calculations and Uncertainties of Vehicle Speed
- Other Titles
- Reconstruction Analysis of Vehicle-pedestrian Collision Accidents: Calculations and Uncertainties of Vehicle Speed
- Authors
- 한인환
- Issue Date
- Sep-2011
- Publisher
- 한국자동차공학회
- Keywords
- Vehicle-pedestrian collision(차량-보행자 충돌); Accident reconstruction(사고 재구성); Pedestrian throw distance(보행자 전도거리); Vehicle speed(차량 속도); Prediction interval(예측 구간)
- Citation
- 한국자동차공학회 논문집, v.19, no.5, pp.82 - 91
- Journal Title
- 한국자동차공학회 논문집
- Volume
- 19
- Number
- 5
- Start Page
- 82
- End Page
- 91
- URI
- https://scholarworks.bwise.kr/hongik/handle/2020.sw.hongik/20127
- ISSN
- 1225-6382
- Abstract
- In this paper, a planar model for mechanics of a vehicle/pedestrian collision incorporating road gradient is derived to evaluate the pre-collision speed of vehicle. It takes into account a few physical variables and parameters of popular wrap and forward projection collisions, which include horizontal distance traveled between primary and secondary impacts with the vehicle, launch angle, center-of-gravity height at launch, distance from launch to rest,pedestrian-ground drag factor, the pre-collision vehicle speed and road gradient. The model including road gradient is derived analytically for reconstruction of pedestrian collision accidents, and evaluates the vehicle speed from the pedestrian throw distance. The model coefficients have physical interpretations and are determined through direct calculation. This work shows that the road gradient has a significant effect on the evaluation of the vehicle speed and must be considered in accident cases with inclined road. In additions, foreign/domestic empirical cases and multibody dynamic simulation results are used to construct a least-squares fitted model that has the same structure of the analytical one that provides an estimate of the vehicle speed based on the pedestrian throw distance and the band within which the vehicle speed would be expected to be in 95% of cases.
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Collections - College of Science and Technology > Department of Mechanical and Design Engineering > 1. Journal Articles
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