Citation

Melcher D, Armstrong J, Jupe J, Bosworth M. Collision 2009; 4(2): 107-118.

Copyright

(Copyright © 2009, Collision Publishing)

DOI

unavailable

PMID

unavailable

Abstract

The investigation and reconstruction of incidents involving heavy vehicles can be difficult for accident reconstructionists who are not familiar with the very different dynamics of these vehicles compared to typical automobiles. This paper provides an introduction to vehicle dynamics concepts applicable to commercial vehicle collisions, with a combination of scientific applications that are unique to heavy vehicles. The performance of commercial vehicles in acceleration, lateral motion, rotational motion, roll and pitch and handling characteristics can provide insight into the events leading up to a collision and avoidance capabilities, as well as during the impact and post-impact trajectory phases. An understanding of factors such as articulation, high centers of gravity, rollover propensity, off-tracking in turns, jack-knifes, trailer swing outs, acceleration rates, and lane change performance also is essential in the investigation and reconstruction of commercial vehicle collisions.