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The aim of this study was to compare the head displacement of the KPSIT C50 dummy,
representing a 50th percentile male, with the KPSIT C5 dummy, representing a 5th percentile female,
during low-speed collisions. Low-speed collisions, such as those occurring in urban traffic jams, are
increasingly common. The research was conducted on a dedicated educational workstation designed
to measure forces in seat belts. This study is part of a comprehensive research project on crash tests
involving both volunteers and physical KPSIT dummies. The tests were conducted at a speed of
20 km/h to simulate real-world low-speed collision scenarios. The findings demonstrate that using a
sports bucket seat with four-point or five-point harnesses significantly reduces head displacement
compared with standard car seats. Such seating configurations enhance safety by minimizing the risk
of head injuries, which can occur when airbags do not deploy during low-speed collisions. Moreover,
the study highlights that standard three-point seat belts allow for greater forward head movement,
increasing the risk of head contact with the vehicle’s interior during collisions at speeds too low to
trigger airbag deployment.