Safety driving posture get great stress

Said driving posture, while sitting in a car seat on a state motorists comfortable interface to manipulate the car (including the steering wheel, dashboard, and the accelerator pedal, the brake pedal, the transmission, etc.), determines the distance of the driver's chest from the steering wheel center to the driving position, the distance of the nose of the driver from the steering wheel, the driver's head and the distance from the front windshield glass. As the vehicle was to encounter the various collision sexual traffic accidents, the driver's driving posture will change the "secondary collision" occurs, causing the driver and the car various objects to cause motorists are subject to varying degrees of injury, so to study the driving posture can help automotive designers to improve the interface design of the car to help the car users to adjust your driving posture, prevent unnecessary harm. 

 Currently, the United States, Japan and other automotive countries are actively studying the driving position and its laws. According to the latest research in the United States, the main factors driving posture including two major aspects: 1 car operation interface structure. They are mainly refers to the size, the distance of the steering wheel and an accelerator pedal / brake pedal of the automotive steering wheel, dashboard knob arrangement as well as the structure of the car seat. 2, motorists personal factors. Including the driver's height, leg length, arm length, driving habits, debt and so on. One important factor is the comfort of the driver to manipulate various pedal layout. Due to the complexity of influencing factors, research on driving posture is also very complex and extensive. 
Dummy test results during the deployment of the airbag in the driver by the extent of injury and the posture of the driver from the steering wheel from close contact 'in a car accident due to driving posture reasons, the diminutive female drivers than medium tall male drivers easier to cause neck injuries; driving the person's chest and the distance of the steering wheel is greater than 25cm, it is possible to significantly reduce the proportion of driving by the chest and neck injuries in accidents; driver is not used or motorists can not properly use seat belts, compared to the little man's female motorists or older elderly motorists driving distance of the steering wheel is more dangerous. 

The two studies have shown that from motorists gender, female drivers at least 10% of height below 154cm little women. Shen, male drivers than female drivers, women are more inclined to the chest close to the steering wheel in the process of driving a car. Height and other aspects of reasons, these women tend to close to the steering wheel, 65% of the diminutive women driving by them, 35% of people in the process of driving a car chest from the steering wheel is less than 25cm. Height greater than 154cm women motorists, often only about 2% of the people driving the steering wheel of the chest distance is less than 25cm.