Case Reports · Case Report C2

Validated Throw Distance Method by Surveillance Video

Fuping Wang, Chengjian Feng, Daiqin Tao, Zhiyong Yin

Forensic Science Seminar · 2012 · Volume 2 · Issue 1 · pp. 46–50

Original Abstract

Abstract

Vehicle-pedestrian collision is one of the most frequent and most severe types of road accidents. The impact velocity is the most important factor in vehicle-pedestrian accident reconstruction, and it can be calculated by many theoretical or empirical methods including throw distance. The throw distance method needs to be validated by other methods for more credible. In this paper, a traffic accident was caught by surveillance video, and was employed to validate the throw distance method provided by The Speed Technical Evaluation for Vehicles Involved in Representative Road Accidents (GA/T 643-2006, China, 2006). The results showed that the impact velocity was calculated by throw distance (36.39 km/h) which is 22.01% lower than the video monitoring (46.66 km/h), which indicated that the vehicle speed calculated by throw distance was much lower than the real-world speed. Further studies are needed to modify the throw distance method by more evidences.

Keywords: Accident reconstruction; Vehicle–pedestrian accident; Vehicle speed; Throw distance; Surveillance video

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