With over 30 years of experience, CRA personnel excel in all aspects of crash investigation and reconstruction. CRA staff has conducted over 3,500 in-depth crash investigations for the U.S. Government and vehicle manufacturers. These investigations have focused on both singular crash events and groups of crashes pertaining to a specific focus for analysis and reporting.
Accurate reconstruction of the crash event lies in the thorough understanding of vehicle design, their mass properties and vehicle dynamics within the event coupled with intimate knowledge of the underlying physical laws of momentum and energy conservation. Computerized reconstruction tools can assist and enhance the crash analysis, but without the underlying understanding of physics, their use can be detrimental. CRA’s engineers have experience in crash modeling dating back to the 1990’s. Their technical education and experience have allowed them to excel in the evaluation and analyses of the physical evidence, vehicle crush, vehicle dynamics, and occupant kinematics, all of which are required elements of a robust, thorough and comprehensive crash reconstruction.
CRA expertise is broad and can provide the following services:
Crash site documentation and Scaled Diagraming
Interpretation of physical evidence
Vehicle exterior damage assessments and energy calculations/delta V analysis
Calculate vehicle pre-crash, impact, post-impact velocities
Event Data Recorder analyses for reconstruction
Contributing to crash causation
Non-performance of safety features
Tire failures, tread separations
Vehicle interior assessment
Occupant compartment intrusion
Occupant contact damage to determine kinematics and injury sources
Restraint system evaluation/performance (Safety belts and Air Bags)
Occupant injury assessment
Child safety seat installation and performance assessments
CRA’s broad expertise extends beyond automobiles and light trucks. CRA investigators have conducted fire investigations of commercial motor coaches and have conducted a large research program of injuries and contributing factors relating to crashes of all-terrain vehicles and heavy trucks. This expertise can be transferred to the investigation of other off-road vehicle to include snowmobiles, golf carts and low-speed vehicles. CRA personnel have extensive expertise in the investigation of emergency response vehicles (police fleets and ambulances) with focus in determining crash causation, operator experience, injury mechanism/source, safety equipment usage and performance, patient compartment integrity, and evaluation of the stretcher/containment systems.