Legroom is the most critical of aircraft economy category that affects passenger comfort. significant improvement in comfort, particularly today’s Low-Cost carrier, by reducing legroom to 29 inches on average, whereas usual seat pitch full-service airline 31 inches. The capacity change range 28 43 within interior mock up. A study investigate function pitches affect well-being during en-route fl...

since the 1960 child safety systems in cars have been developed. the 3 point safety belt for adults rated as one of the 10 most important inventions for mankind, the seat belt has saved more than 1.5 million lives. as well children have to be secured in a car but the 3 point belt is designed for adults. a 27 kg child is forced forward with 1.200 kg at 48 kph impact velocity. here vulnerable bod...

In terms of the eVectiveness at the total population level, seat belts represent the front line of passive safety against death and serious injuries from passenger car crashes. They reduce by about 50% the risk of death and serious injury for car occupants; this knowledge, however, is not promptly translated into action and the frequency of seat belt use in the European Union member states vari...

OBJECTIVE Belt-positioning booster seats have been shown to reduce injury risk among child passengers aged 4 to 8 in motor vehicle crashes. To encourage the use of booster seats, many states have enacted laws that require the use of either a child restraint with internal harness or a belt-positioning booster seat, but the specific age range covered by the laws varies by state. Previous studies ...

A large number of independent and interacting factors affect seating comfort such as seat shape, stability, lumbar support and seat height. Although many subjective comfort studies have been conducted, few of them considered seating comfort from its subassembly level. This paper analyzed the automotive seat cushion designed with geared four-bar linkage for the seat height adjustment. The operat...

BMJ 1992;304:614 Road traffic accidents are the commonest cause of blunt maternal trauma in pregnancy.' In the United Kingdom it is compulsory for motorists and passengers to wear seat belts unless they have a medical exemption certificate. Some pregnant women find seat belts uncomfortable and do not wear them, others wear them incorrectly. We recently reported two cases showing the hazards to ...

The objective of this study was to compare the lateral apparent mass of the seated human body measured in response to lateral and roll motions. The lateral apparent mass was measured at the seat surface using a rigid flat seat with no backrest. The axis of rotation of the roll motions was also at the seat surface. Tests were conducted using pseudo-random motions band-limited at 0.2 and 2 Hz rep...

Sonarmen undergoing refresher training in the Sonar Operational Trainer compared, while on "sonar watch," the comfort of four seating designs: a contoured automobile seat with an adjustable backrest; a "kneeling" chair; a conventional office chair with an inflatable lumbar support pillow; and a conventional office chair. The subj ects were asked to use each seat for an entire day --unless it wa...