Citation

Schmidt B. Collision 2007; 2(1): 12-18.

Copyright

(Copyright © 2007, Collision Publishing)

DOI

unavailable

PMID

unavailable

Abstract

This paper provides information regarding the theoretical framework for using principal direction of force, delta-v and closing velocity data from event data recorders for accident reconstruction and addresses the use of relationships between these data for analyzing two-dimensional collisions. The connections between this analysis and the use of 360 deg momentum conservation are addressed. Examples of applying this methodology are given. The methodology of calculating closing velocity from delta-v appears to be valid for a large class of collisions, although errors can be significant for offset collisions that result in the separation velocity being at a large angle to the closing velocity. Examples of uncertainty calculation are provided. Limitations of the methodology and available data are discussed.