Accident; analysis and prevention
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One of the concerns in road safety is the threat older drivers may pose to other road users. Using the rate of lost life years, the present study provides a public health approach to quantify this potential threat. ⋯ Our findings suggest that among road users involved in injury crashes, older drivers are less dangerous for the other road users. By attributing other road users' lost life years to each driver age, this study represents a new contribution to the debate about ageing and road safety.
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Observational data were collected to determine the percentage of drivers that followed various seatbelt buckling sequences. Observers scored the buckling sequence and recorded the time between various startup events and fastening the seatbelt of 1600 drivers in two urban areas, Pinellas County, Florida, and Halifax, Nova Scotia, Canada. The results indicated that most drivers waited to buckle their seatbelt until after they started their vehicle or placed it into gear, with a substantial proportion buckling after placing the vehicle in motion. These results suggest that a salient second seatbelt reminder that was initiated 30s after placing the vehicle in gear would only be experienced by persons who do not buckle their seatbelt and less than 1% of drivers who buckle their seatbelt more than 29 s after placing the vehicle in gear.
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Thoracic trauma secondary to motor vehicle crashes (MVC) continues to be a major cause of morbidity and mortality. Specific vehicle features may increase the risk of severe thoracic injury when striking the occupant. We sought to determine which vehicle contact points were associated with an increased risk of severe thoracic injury in MVC to focus subsequent design modifications necessary to reduce thoracic injury. ⋯ Several vehicle contact points, including the steering wheel, door panel, armrest and seat are associated with an increased risk of severe thoracic injury when striking the occupant. These elements need to be further investigated to determine which characteristics need to be manipulated in order to reduce thoracic trauma during a crash.