Abstract
The Emergency Driving Stop System (EDSS), which can stop a vehicle when a driver's sudden illness occurs while driving a vehicle by pressing the switch, is beginning to be adopted for large commercial bus etc. This study analyzed the operation behavior of pressing the emergency stop switch using a three-dimensional human postural skeletal detection system, assuming the posture of a driver in a sudden physical condition, and clarified the postures that affect the ease of pressing the switch from an ergonomic viewpoint. As a result, the multiple regression analysis for upper body posture on ease of pressing indicated that the influential factors were forearm angle, upper arm movement, and wrist movement in the z-direction. Considering the situation of sudden change in physical condition and the posture that facilitates pressing, the EDSS switch should be located as close as possible to the driver, and the center of the handle would be suitable.
