Occupant Injury

Seat Belt Loading Marks

The professional engineering team at BME have collectively analyzed thousands of motor vehicle collisions involving single and multiple vehicles, recreational vehicles and motorcycles.

In addition to examining vehicle collision damage, measuring deformation and crush, and determining force directions many collisions also require an analysis of occupant injury to determine if occupants were correctly, or not, utilizing the available restraint systems in the vehicle. Restraint systems comprise lap/shoulder restraints, lap restraints and child restraints.

Our analysis of occupant injury will often often comprise:

  • Determining vehicle collision damage, deformation and crush, determining force directions and change in velocity (Delta V).
  • Determining occupant kinematics during each stage of the collision.
  • Reviewing occupant medical records, and other pertinent material, to document injury patterns.
  • Attributing risk of injury to each stage of the collision event.
  • Determining if available restraints were used correctly, or not.
  • Determining if available airbags were functioning and effective, or not.


Jonathan P. Gough P.Eng.
David M. Little P.Eng.
D. Harvey West P.Eng.