01333521

Component

A database of reconstructed motor-vehicle accidents with fixed-objects was analyzed to determine representative non-tracking and side-impact conditions. A side-slip parameter was defined based on vehicle trajectory, and used to analyze vehicle tracking and stability. A value equal to 20 degrees for the side-slip angle was determined to be appropriate to differentiate tracking from non-tracking impacts. Non-tracking and tracking impact conditions, vehicular impact location, and injury severity were analyzed. The maximum practical value of vehicle yaw rate during ran-off-road crashes was found to be 47 degrees per second. Accidents involving a narrow-object side-impact into the occupant compartment area were associated with a 19 percent increase in the probability of critical injury. Impact locations were also analyzed to maximize risk of occupant interaction with the object struck. Based on the results of this study, worst-practical-case impact conditions were identified and recommended for evaluation of roadside features with side-impact and non-tracking impact conditions.

01329018

11-3806

English

21p

2011

Transportation Research Board 90th Annual Meeting

DVD

Figures (9) ; References (13) ; Tables (3)

Crash injuries; Crash reconstruction; Highway safety; Injury severity; Ran off road crashes; Side crashes; Stability analysis; Traffic crashes; Yaw

Fixed objects

Highways; Safety and Human Factors; I82: Accidents and Transport Infrastructure; I83: Accidents and the Human Factor

Transportation Research Board Annual Meeting 2011 Paper #11-3806

TRIS, TRB

Feb 17 2011 6:39PM