Accident Reconstruction & Biomechanics / Biomechanics

Occupant Reaction Testing

Evaluating the Likelihood of Injury

Forensic biomechanics involves the application of physics and biology to analyze human body responses to applied external forces to understand injury causation. A key aspect of forensic biomechanics related to vehicular occupant injury claims is the study of human occupant kinematics within a vehicle during an accident and analyzing forces applied to the occupant via interaction with the structure of the vehicle. Occupant reaction testing involves physical testing and simulations to replicate occupant movement and safety system performance in a given crash scenario using exemplar models, advanced tools and software to evaluate the likelihood of injury.

Live Crash Testing Scenarios

Common methods implemented in occupant reaction evaluations include using available crash testing data from public sources such as IIHS (Insurance Institute for Highway Safety) and NHTSA (National Highway Traffic Safety Administration) and performing physics-based computer modeling and/or simulations. Where projects require specific or unique testing, YA Group experts can design live crash testing scenarios with human occupants or anthropometric testing devices (ATDs) to characterize a specific event. Key factors investigated in occupant reaction testing include the influence of out-of-position occupants, the influence of safety restraint systems and mechanisms underlying unique or uncommon injuries. Our experts utilize the latest evidence-based methods and techniques, sensors, and software to perform occupant reaction testing.

Clear Evidence for Reporting

Once testing and analysis of occupant reaction testing is completed, our experts provide clear, scientifically grounded opinions including full descriptions of the methods implemented as well as the scientific underpinnings and supporting research. Our final reports and accompanying aids support attorneys, insurers and claims professionals in distinguishing fact from speculation.