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Occupant-to-Occupant Interaction and Impact Injury Risk in Side Impact Crashes
Technical Paper
2008-22-0013
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Language:
English
Abstract
To date, efforts to improve occupant protection in side impact crashes have concentrated on reducing the injuries to occupants seated on the struck side of the vehicle arising from contact with the intruding side structure and/or external objects. Crash investigations indicate that occupants on the struck side of a vehicle may also be injured by contact with an adjacent occupant in the same seating row. Anecdotal information suggests that the injury consequences of occupant-to-occupant impacts can be severe, and sometimes life threatening. Occupant-to-occupant impacts leave little evidence in the vehicle, and hence these impacts can be difficult for crash investigators to detect and may be underreported. The objective of this study was to evaluate the risk of impact injury from occupant-to-occupant impacts in side impact vehicle crashes.
The study examined 9608 crashes extracted from NASS/CDS 1993-2006 to investigate the risk of occupant-to-occupant impacts. The study computed relative risk ratio of serious injury (MAIS 3 or greater) for drivers with and without an adjacent front seat passenger present. This approach avoids uncertainties in the coding of occupant-to-occupant contact. The NASS data showed an 8% increased injury risk for struck side drivers in cases where a belted front seat passenger was present. If the front seat passenger was unbelted, struck side driver injury risk was found to be 30% higher than for struck side drivers without a front seat passenger.
A series of 6 full scale vehicle side impact crash tests, both mobile deformable barrier to vehicle and vehicle-to-pole, were conducted to assess injury risk and determine the occupant kinematics which lead to occupant-to-occupant impact. Limitations of the biofidelity of current ATDs to simulate occupant interaction were noted. Occupant interaction indicating risk of serious head injury to both the driver and front seat passenger was observed in vehicle-to-pole side impact. The results show that despite the introduction of countermeasures to protect struck side occupants from contact with intruding structure or external objects, these occupants may be severely injured by impacting adjacent occupants. The feasibility of a potential countermeasure, developed to offer protection for two adjacent occupants as well as a single occupant seated on the non-struck side, was investigated through analysis of the dummy injury responses produced in pole side impact tests, with and without the countermeasure installed. The countermeasure was observed to reduce the risk of head injury from occupant interaction.
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Authors
- Craig Newland - Australian Government Department of Infrastructure, Transport, Regional Development and Local Government
- Thomas Belcher - Australian Government Department of Infrastructure, Transport, Regional Development and Local Government
- Ola Bostrom
- Hampton C. Gabler
- Joon-Geun Cha - Hyundai Motor Company
- Hee Loong Wong - Hyundai Motor Company
- Suzanne Tylko
- Ross Dal Nevo
Topic
Citation
Newland, C., Belcher, T., Bostrom, O., Gabler, H. et al., "Occupant-to-Occupant Interaction and Impact Injury Risk in Side Impact Crashes," SAE Technical Paper 2008-22-0013, 2008, https://doi.org/10.4271/2008-22-0013.Also In
References
- Bostrom O. Fildes B. Morris A. Sparke L. Smith S. Judd R. 2003 A cost effective far side crash simulation International Journal of Crashworthiness 8 3 307 313
- Digges K. Dalmotas D. 2001 Injuries to restrained occupants in far-side crashes Proc. 17th International Technical Conference on the Enhanced Safety of Vehicles (ESV) Paper No. 351
- Digges K. Gabler H. Mohan P. Alonso B. 2005 Characteristics of the injury environment in far-side crashes 49th Annual Proc. Association for the Advancement of Automotive Medicine 185 197
- Fildes B. Bostrom O. Sparke L. Pintar F. Yoganandan N. 2006 The influence of a flexible lumbar spine in far-side impact testing International Journal of Crashworthiness 11 3 273 280
- Fildes B. Linder A. Douglas C Digges K. Morgan R. Pintar F. Yoganandan N. Gabler H. Duma S. Stitzel J. Bostrom O. Sparke L. Smith S. Newland C. 2005 Occupant protection in far side crashes Proc. 19th International Technical Conference on the Enhanced Safety of Vehicles (ESV) Paper No. 05-0299
- Gabler H. Fitzharris M. Scully J. Fildes B. Digges K. Sparke L. 2005 Far side impact injury risk for belted occupants in Australia and the United States Proc. 19th International Technical Conference on the Enhanced Safety of Vehicles (ESV) Paper No. 05-0420
- National Highway Traffic Safety Administration (NHTSA), US Department of Transportation 2007 49 CFR Parts 571 and 585 [Docket No. NHTSA-29134] RIN 2127--AJ10.
- Pintar F. Yoganandan N. Stemper B. Bostrom O. Rouhana S. Digges K. Fildes B. 2007 Comparison of PMHS, WorldSID and THOR-NT responses in simulated far side impact Proc. 51st Stapp Car Crash Conference 313 360 Society of Automotive Engineers Warrendale, PA
- SAE Safety Test Instrumentation Standards Committee 2003 SAE J211-1—Instrumentation for Impact Test—Part 1—Electronic Instrumentation Society of Automotive Engineers Warrendale, PA
- Scherer R. Cesari D. Uchimura T. Kostyniuk G. Page M. Asakawa K. Hautmann E. Bortenschlager K. Sakurai M. Harigae T. 2001 Design and Evaluation of the WorldSID Prototype Dummy Proc. 17th International Technical Conference on the Enhanced Safety of Vehicles (ESV) Paper No. 409
- Thomas P. Frampton R. 1999 Injury patterns in side collisions – a new look with reference to current test methods and injury criteria Proc. 41st Stapp Car Crash Conference 13 24 Society of Automotive Engineers Warrendale, PA
- United Nations Economic Commission for Europe (UNECE) Regulation 95 - Uniform provisions concerning the approval of vehicles with regard to the protection of the occupants in the event of a lateral collision UNECE WP29 Working Party on Passive Safety (GRSP) Geneva http://www.unece.org/trans/main/wp29/wp29regs81-100.html