Abstract
This work investigates the design of cars' seat belts using anthropometric measurements of pregnant women. Pregnant women may experience physical and psychological discomfort as a result of wearing a safety belt fearing of the belt pressure that may cause harm to their babies. The lack of appropriate fit of the current seat belt to pregnant women can be improved by having a design that takes into account the body size and shape of pregnant women. Pregnant women from different obstetrics and gynecology clinics in their third trimester were interviewed to allocate the regions of discomfort when wearing the belt. Landmarks were identified on the body showing the extension of the baby bump. A proposed seat belt design for front seat riders was developed based on the anthropometric measures collected from the subjects. This work is intended to provide guidelines for car designers to enhance seat belts that provide comfort and emotional security for pregnant women.