A study by a U.S. nonprofit organisation, the Insurance Institute for Highway Safety (IIHS), has indicated that safer restraint systems are needed for the backseats of cars.
The study took a sample of 117 front crashes that resulted in a backseat passenger, who, despite wearing a seat belt, died or were gravely injured.
Unlike for front seats, safety design for back seats was seriously lagging behind, the study showed.
It found that the many chest injuries that occurred due to force from the seat belts could easily have been avoided if there was an upgrade in design and safety equipment of the back seat.
The study suggested that such cases could have been mitigated if seatbelts attached to backseats were equipped with force limiters, which let out some slack from the seat belt as force increases.
The study further stressed that better safety technologies were needed in the backseats of cars, including air bags that deploy from the ceiling.
Car makers were advised to make the adequate correction for the safety of passengers.
IIHS works to reduce the number of motor vehicle traffic collisions, and the rate of injuries and amount of property damage in the crashes that still occur.