Abstract
In the sensory evaluation of the driver, the steering transient response is divided into stages, and the phenomena of each stage is explained. In order to improve the steering response based on the understanding of this explanation, the stage of the steering transient response was theoretically categorized. Further, I pointed out the order in which response indices become apparent for each stage. As a result, it turns out that it becomes manifested in order of fast response, yaw lead time constant and yaw natural frequency.