Reliability verification of vehicle speed estimate method in forensic videos

Jong-Hyuk Kim; Won-Taek Oh; Ji-Hun Choi; Jong-Chan Park

doi:10.1016/j.forsciint.2018.04.002

Reliability verification of vehicle speed estimate method in forensic videos

Forensic Sci Int. 2018 Jun:287:195-206. doi: 10.1016/j.forsciint.2018.04.002. Epub 2018 Apr 9.

Authors

Jong-Hyuk Kim¹, Won-Taek Oh², Ji-Hun Choi², Jong-Chan Park²

Affiliations

¹ Traffic Accident Analysis Division, National Forensic Service, 10, Ipchun-ro, Wonju-si, Gangwon-do, 26460, Republic of Korea. Electronic address: jhkim11@korea.kr.
² Traffic Accident Analysis Division, National Forensic Service, 10, Ipchun-ro, Wonju-si, Gangwon-do, 26460, Republic of Korea.

PMID: 29702416
DOI: 10.1016/j.forsciint.2018.04.002

Abstract

In various types of traffic accidents, including car-to-car crash, vehicle-pedestrian collision, and hit-and-run accident, driver overspeed is one of the critical issues of traffic accident analysis. Hence, analysis of vehicle speed at the moment of accident is necessary. The present article proposes a vehicle speed estimate method (VSEM) applying a virtual plane and a virtual reference line to a forensic video. The reliability of the VSEM was verified by comparing the results obtained by applying the VSEM to videos from a test vehicle driving with a global positioning system (GPS)-based Vbox speed. The VSEM verified by these procedures was applied to real traffic accident examples to evaluate the usability of the VSEM.

Keywords: CCTV; Car black box (vehicle on-board video camera); Forensic video; VSEM (Vehicle speed estimate method); Virtual plane; Virtual reference line.