Technology, Policy Changes Recommended To Better Protect Older Children And Adolescents In Crashes
"Our review of the current science and data regarding rear seat occupant safety found clear evidence that use of a child restraint system (CRS) is protective for younger children. However, older children who have outgrown child safety seats and booster seats are at greater risk of injury," says Kristy Arbogast, PhD, lead author of the report and director of engineering at the Center for Injury Research and Prevention at CHOP. "Many technologies that protect front seat passengers, such as load limiters and pretensioners, are not commonly found in the rear seat even though sled tests and computer modeling suggest that these seat belt features have the potential to reduce the risk of serious head and chest injury for rear seated occupants."
In addition to front seat restraints, CHOP researchers suggest that cues can be taken from booster seat design to determine how to keep kids who have outgrown boosters properly positioned in vehicle seat belts so the restraint can perform properly. They propose that adjustments to the geometry of the rear seat - including shorter seat cushions, lower seat belt anchorages and contoured seats - could increase comfort, keep the shoulder belt in position and, in side impact crashes, reduce lateral movement.
"For children under age 13, the rear seat is still the safer seating position as compared to the front seat of passenger vehicles," says Dr. Arbogast. "But we can do a better job at protecting children who have outgrown add-on restraints."
The report authors recommend the development of regulatory procedures or vehicle performance assessment programs for consumers that evaluate protection of rear seat occupants. Common vehicle rating systems do not evaluate the safety of rear seat occupants in frontal crashes. In addition to engineering solutions, the report also recommends policies and programs to increase rear seat restraint use, which remains lower than front seat restraint use and is a key risk factor for dying in a crash. Additional research is needed to further inform these priorities.
To download the full report, made possible with support from Global Automakers, and additional materials including a one-page overview of CIRP's recommendations and an infographic, visit http://injury.research.chop.edu.
Children's Hospital of Philadelphia
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