There are many devices developed to improve the vehicle performance for driving safety. The human behavior in emergency situations is an important factor in applying these devices to vehicles. However, the general driver's maneuver is not clear in these situations. Since it is very dangerous to study the emergency avoidance maneuver using actual vehicles, a driving simulator is used in order to clarify the structure of a driver model and its skill. The purpose of this study is to develop a steering reaction torque system for the driving simulator and to clarify the general driver's performance for emergency avoidance. As a result of our experiment, it is verified that the avoidance pattern and reaction time vary with the driver's degree of recognition to the obstacle. If the driver cannot recognize the obstacle, the avoidance maneuver is mainly braking with an average reaction time of 0.8 seconds.

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