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Injuries to restrained occupants in far-side crashes
J Augenstein1, E Perdeck, P Martin
1William Lehman Injury Research Center, University of Miami School of Medicine, Miami, Florida, USA.
Annual Proceedings. Association for the Advancement of Automotive Medicine
|September 18, 2001
Summary
Far-side crash occupants sustain serious injuries primarily from contact with the vehicle interior and safety belts. Injury patterns differ between drivers and passengers, with head and chest/abdomen being most affected.
Area of Science:
- Traffic Safety Research
- Injury Biomechanics
- Automotive Engineering
Background:
- Far-side crashes involve occupants on the side opposite the impact.
- Understanding injury patterns and sources is crucial for improving vehicle safety.
Purpose of the Study:
- To determine the distribution and sources of Abbreviated Injury Scale (AIS) 3+ injuries in far-side crashes.
- To assess injury mechanisms in seriously injured far-side occupants.
Main Methods:
- Analysis of the National Accident Sampling System/General Estimates System (NASS/CDS) database (1988-1998).
- Utilized William Lehman Injury Research Center (WLIRC) data (1994-1998) for in-depth injury mechanism assessment.
- Compared injury patterns between far-side restrained drivers and front passengers.
Main Results:
- Driver AIS 3+ injuries: 40% head, 45.5% chest/abdomen. Opposite-side interior contact (30.5%) and seat belt (22.6%) were primary injury sources.
- Front passenger AIS 3+ injuries: 27.2% head, 64.5% chest/abdomen. Seat contact was frequent, but non-contacts, occupant contacts, and seat belt contacts were also significant.
- WLIRC data showed seat belt as a source of serious injuries (liver/spleen) in 5 out of 13 cases.
- Near-side occupant presence mitigated far-side occupant injuries from interior contacts.
Conclusions:
- Contacts with the opposite side of the vehicle interior and safety belts are leading causes of serious injuries in far-side crashes.
- Injury patterns and primary sources vary significantly between far-side drivers and front passengers.
- Further research into seat belt injury mechanisms and the protective effects of near-side occupants is warranted.